Update notes for submitted changes

* [spotbugs] FileReftableDatabase: extract lock to local variable

fa/0e77e8f92d0710caf75085af1e6fb50b7d942d

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Christian Halstrick <christian.halstrick@sap.com>
+Submitted-by: Christian Halstrick <christian.halstrick@sap.com>
+Submitted-at: Tue, 22 Dec 2020 19:26:22 -0500
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/173376
+Project: jgit/jgit
+Branch: refs/heads/master