Update notes for submitted changes

* Upgrade wagon-ssh to 3.4.3
* Update spring-boot-maven-plugin to 2.4.4
* Update spotbugs-maven-plugin to 4.2.2
* Update japicmp-maven-plugin to 0.15.3

58/dd6496eb73ccfe3518cafe64511306da61d120

@@ -0,0 +1,7 @@
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Fri, 26 Mar 2021 20:13:20 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/178331
+Project: jgit/jgit
+Branch: refs/heads/master

60/c32aa22121dfcca2bee12cdc7d9b7df7f81fe4

@@ -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: Fri, 26 Mar 2021 20:13:20 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/178420
+Project: jgit/jgit
+Branch: refs/heads/master

76/72f25948004e4952e3ffd475da54fe5b44a2d0

@@ -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: Fri, 26 Mar 2021 20:13:20 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/178422
+Project: jgit/jgit
+Branch: refs/heads/master

af/d5c6153676c95e85a33791f811b7e93b56f434

@@ -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: Fri, 26 Mar 2021 20:13:20 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/178421
+Project: jgit/jgit
+Branch: refs/heads/master