Update notes for submitted changes

* Fix @since tag for introduction of PUBKEY_ACCEPTED_ALGORITHMS

cb/65846722e82300ef570bc9e161ac1c9ca97348

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Sun, 16 May 2021 17:23:07 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/180593
+Project: jgit/jgit
+Branch: refs/heads/master