Bump sled from 0.26.3 to 0.29.1

[dependabot-preview]

Bumps sled from 0.26.3 to 0.29.1.

Release notes

Sourced from sled's releases.

Config, Transaction, and Opening Revamp

New Features

• The Config::open method has been added to give
  Config a similar feel to std's fs::OpenOptions.
  The Config::build and Db::start methods are
  now deprecated in favor of calling Config::open
  directly
• A checksum method has been added to Tree and Db
  for use in verifying backups and migrations.
• Transactions may now involve up to 69 different
  tables. Nice.
• The TransactionError::Abort variant has had
  a generic member added that can be returned
  as a way to return information from a
  manually-aborted transaction. An abort helper
  function has been added to reduce the boiler-
  plate required to return aborted results.

Breaking Changes

• The ConfigBuilder structure has been removed
  in favor of a simplified Config structure
  with the same functionality.
• The way that sled versions are detected at
  initialization time is now independent of serde.
• The cas method is deprecated in favor of the new
  compare_and_swap method which now returns the
  proposed value that failed to be applied.
• Tree nodes now have constant prefix encoding
  lengths.
• The io_buf_size configurable renamed to
  segment_size.
• The io_buf_size configurable method has been
  removed from ConfigBuilder. This can be manually
  set by setting the attribute directly on the
  ConfigBuilder, but this is discouraged.
  Additionally, this must now be a power of 2.
• The page_consolidation_threshold method has been
  removed from ConfigBuilder, and this is now
  a constant of 10.

async flush, bugfixes, event variant rename

Breaking Changes

• Event::Set has been renamed to Event::Insert and
  Event::Del has been renamed to Event::Remove. These
  names better align with the methods of BTreeMap from
  the standard library.

... (truncated)

Changelog

Sourced from sled's changelog.

0.29

New Features

• The Config::open method has been added to give
  Config a similar feel to std's fs::OpenOptions.
  The Config::build and Db::start methods are
  now deprecated in favor of calling Config::open
  directly
• A checksum method has been added to Tree and Db
  for use in verifying backups and migrations.
• Transactions may now involve up to 69 different
  tables. Nice.
• The TransactionError::Abort variant has had
  a generic member added that can be returned
  as a way to return information from a
  manually-aborted transaction. An abort helper
  function has been added to reduce the boiler-
  plate required to return aborted results.

Breaking Changes

• The ConfigBuilder structure has been removed
  in favor of a simplified Config structure
  with the same functionality.
• The way that sled versions are detected at
  initialization time is now independent of serde.
• The cas method is deprecated in favor of the new
  compare_and_swap method which now returns the
  proposed value that failed to be applied.
• Tree nodes now have constant prefix encoding
  lengths.
• The io_buf_size configurable renamed to
  segment_size.
• The io_buf_size configurable method has been
  removed from ConfigBuilder. This can be manually
  set by setting the attribute directly on the
  ConfigBuilder, but this is discouraged.
  Additionally, this must now be a power of 2.
• The page_consolidation_threshold method has been
  removed from ConfigBuilder, and this is now
  a constant of 10.

0.28

Breaking Changes

• Iter no longer has a lifetime parameter.
• Db::open_tree now returns a Tree instead of
  an Arc<Tree>. Tree now has an inner type that

... (truncated)

Commits

• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

[dependabot-preview]

Superseded by #21.