Merge pull request microsoft#1438: [Mac kext] Allow privileged system…

… service 'amfid' to hydrate

[releases/shipped] Allow privileged system service 'amfid' to hydrate

Merge pull request microsoft#1422: Update Git, drop MIDX writes

This PR does two things:

1. Updates Git to include the slow commit-graph write fix from microsoft/git#168. Also see microsoft#1420 for the M153 hotfix.

2. Removes the multi-pack-index writes from the `PostFetchStep` and instead only writes the multi-pack-index during the `PackfileMaintenanceStep`. In order to get the most out of the step, we need to ensure we have a multi-pack-index before running the `expire` and `repack` steps. Also, we can only expire the packs from that day if they are contained in the multi-pack-index.

If we agree that we should send (2) as a hotfix to the M155 release (in addition to (1), which is necessary), then I'll create a hotfix PR to that branch.

Merge pull request microsoft#1385 [Release] Milestone M155

[Release] Milestone M155

Merge pull request microsoft#1256: Merge milestones/M153 to releases/…

…shipped

- Includes Git 2.22
- Moves placeholder database into SQLite for better performance.
- Fixes when libgit2 repos are acquired and disposed for better performance of checkout (where detected) and other operations that rely heavily on the read-object hook.
- Adds additional logging for folder and file placeholder creation.
- Other bug fixes for reliability

Merge pull request microsoft#1247: Upgrade to Microsoft.Windows.ProjF…

…S 1.1.19156.1

Upgrade to Microsoft.Windows.ProjFS 1.1.19156.1

Merge pull request microsoft#1179: [HOTFIX] Low-priority maintenance,…

… delta computations

This includes two changes in/against master:

microsoft#1157 : Run git operations at a lower prioirity
microsoft#1178 : compute deltas while running packfile maintenance.

Merge pull request microsoft#1145: Upgrader: do not include Micrsoft.…

…Diagnostic.Tracing.EventSource

Upgrader: do not include Micrsoft.Diagnostic.Tracing.EventSource

Merge pull request microsoft#1020: GitAuthentication: do not trace cr…

…edential data

Merge pull request microsoft#1020: GitAuthentication: do not trace cr…

…edential data

Merge pull request microsoft#1020: GitAuthentication: do not trace cr…

…edential data