Merge pull request #554 from fluxcd/update-git2go-v31.7.6

Update git2go to v31.7.6

Author: stefanprodan

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/go-git/go-billy/v5 v5.3.1
 	github.com/go-git/go-git/v5 v5.4.2
 	github.com/go-logr/logr v1.2.2
-	github.com/libgit2/git2go/v31 v31.6.1
+	github.com/libgit2/git2go/v31 v31.7.6
 	github.com/minio/minio-go/v7 v7.0.15
 	github.com/onsi/ginkgo v1.16.5
 	github.com/onsi/gomega v1.17.0

go.sum

@@ -622,8 +622,8 @@ github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0/go.mod h1:vmVJ0l/dxyfGW6Fm
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.10.0 h1:Zx5DJFEYQXio93kgXnQ09fXNiUKsqv4OUEu2UtGcB1E=
 github.com/lib/pq v1.10.0/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-github.com/libgit2/git2go/v31 v31.6.1 h1:FnKHHDDBgltSsu9RpKuL4rSR8dQ1JTf9dfvFhZ1y7Aw=
-github.com/libgit2/git2go/v31 v31.6.1/go.mod h1:c/rkJcBcUFx6wHaT++UwNpKvIsmPNqCeQ/vzO4DrEec=
+github.com/libgit2/git2go/v31 v31.7.6 h1:jg/pNomrQULnafmfF6XTkozPX5ypyELoWErWkJuYPcI=
+github.com/libgit2/git2go/v31 v31.7.6/go.mod h1:c/rkJcBcUFx6wHaT++UwNpKvIsmPNqCeQ/vzO4DrEec=
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de h1:9TO3cAIGXtEhnIaL+V+BEER86oLrvS+kWobKpbJuye0=
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de/go.mod h1:zAbeS9B/r2mtpb6U+EI2rYA5OAXxsYw6wTamcNW+zcE=
 github.com/lithammer/dedent v1.1.0/go.mod h1:jrXYCQtgg0nJiN+StA2KgR7w6CiQNv9Fd/Z9BP0jIOc=