chore: unbreak existing tests

Because the user:password is no longer automatically set as upstream
origin, we have to set it manually if we want push to work.

tests/integration/pull_diff_test.go

@@ -93,6 +93,7 @@ func TestPullDiff_AGitNotEditable(t *testing.T) {
 			cloneURL, _ := url.Parse(clone)
 			cloneURL.User = url.UserPassword("user2", userPassword)
 			require.NoError(t, git.CloneWithArgs(t.Context(), nil, cloneURL.String(), dstPath, git.CloneRepoOptions{}))
+			doGitSetRemoteURL(dstPath, "origin", cloneURL)(t)
 
 			return dstPath
 		}