Bump github.com/go-git/go-git/v5 from 5.11.0 to 5.12.0

Bumps [github.com/go-git/go-git/v5](https://github.com/go-git/go-git) from 5.11.0 to 5.12.0.
- [Release notes](https://github.com/go-git/go-git/releases)
- [Commits](go-git/go-git@v5.11.0...v5.12.0)

---
updated-dependencies:
- dependency-name: github.com/go-git/go-git/v5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

go.mod

@@ -3,14 +3,13 @@ module github.com/github/codeql-action-sync
 go 1.14
 
 require (
-	github.com/go-git/go-git/v5 v5.11.0
+	github.com/go-git/go-git/v5 v5.12.0
 	github.com/google/go-github/v32 v32.1.0
 	github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
 	github.com/gorilla/mux v1.8.1
 	github.com/markbates/pkger v0.17.1
 	github.com/mitchellh/ioprogress v0.0.0-20180201004757-6a23b12fa88e
 	github.com/pkg/errors v0.9.1
-	github.com/sergi/go-diff v1.2.0 // indirect
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spf13/cobra v1.8.1
 	github.com/stretchr/testify v1.9.0