cut down appveyor's env matrix since we're now running serially

appveyor.yml

@@ -56,43 +56,18 @@ environment:
 
   matrix:
     - scenario: 2008R2
-      part: 1/2
       main_instance: localhost\SQL2008R2SP2
       setup_scripts: \tests\appveyor.SQL2008R2SP2.ps1
-    - scenario: 2008R2
-      part: 2/2
-      main_instance: localhost\SQL2008R2SP2
-      setup_scripts: \tests\appveyor.SQL2008R2SP2.ps1
-    - scenario: 2016
-      part: 1/2
-      main_instance: localhost\SQL2016
-      setup_scripts: \tests\appveyor.SQL2016.ps1
     - scenario: 2016
-      part: 2/2
       main_instance: localhost\SQL2016
       setup_scripts: \tests\appveyor.SQL2016.ps1
     - scenario: service_restarts
-      part: 1/2
-      main_instance: localhost\SQL2017,localhost\SQL2016
-      setup_scripts: \tests\appveyor.SQL2017.ps1,\tests\appveyor.SQL2016.ps1
-    - scenario: service_restarts
-      part: 2/2
-      main_instance: localhost\SQL2017,localhost\SQL2016
-      setup_scripts: \tests\appveyor.SQL2017.ps1,\tests\appveyor.SQL2016.ps1
-    - scenario: 2016_2017
-      part: 1/2
       main_instance: localhost\SQL2017,localhost\SQL2016
       setup_scripts: \tests\appveyor.SQL2017.ps1,\tests\appveyor.SQL2016.ps1
     - scenario: 2016_2017
-      part: 2/2
       main_instance: localhost\SQL2017,localhost\SQL2016
       setup_scripts: \tests\appveyor.SQL2017.ps1,\tests\appveyor.SQL2016.ps1
     - scenario: default
-      part: 1/2
-      main_instance: localhost\SQL2008R2SP2,localhost\SQL2016
-      setup_scripts: \tests\appveyor.SQL2008R2SP2.ps1,\tests\appveyor.SQL2016.ps1
-    - scenario: default
-      part: 2/2
       main_instance: localhost\SQL2008R2SP2,localhost\SQL2016
       setup_scripts: \tests\appveyor.SQL2008R2SP2.ps1,\tests\appveyor.SQL2016.ps1
 

tests/pester.groups.ps1

@@ -23,7 +23,8 @@ $TestsRunGroups = @{
     # do not run on appveyor
     "appveyor_disabled" = @(
         'Backup-DbaDbCertificate',
-        'Test-DbaDbLogShipStatus'
+        'Test-DbaDbLogShipStatus',
+        'Invoke-DbaDbMirroring'
     )
     # do not run everywhere
     "disabled"          = @()