Simplify Revision.clone() implementation (#1106)

* Used Objects.hash as a better practice

* Used String.format for better consistency

* Added additional check in release-drafter.yml github action file

* Operating systems with outdated OpenSSH are no longer supported (#1099)

List more operating systems so that web searches will find the page.

Link to the operating system end of life blog post.

Correct the name of Amazon Linux name.

Add the most important option, upgrade to a supported operating system.

* Bump org.jenkins-ci.plugins:plugin from 4.76 to 4.77 (#1098)

Bumps [org.jenkins-ci.plugins:plugin](https://github.com/jenkinsci/plugin-pom) from 4.76 to 4.77.
- [Release notes](https://github.com/jenkinsci/plugin-pom/releases)
- [Changelog](https://github.com/jenkinsci/plugin-pom/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/plugin-pom@plugin-4.76...plugin-4.77)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.plugins:plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Remove redundant spotbugs details from pom (#1101)

Included in parent pom 4.77

* Bump io.jenkins.tools.bom:bom-2.401.x (#1102)

* Bump org.jenkins-ci.plugins:plugin from 4.77 to 4.78 (#1105)

* made sh1 and branches private for better encapsulation and changed branches from collection to list for indexed access and specific order

* Converted List type back to Collection for branches variable

* ran mvn spotless:apply

* reverted priavte sha1 and branches variable

* Revert "ran mvn spotless:apply"

This reverts commit 4f2a151.

* made some changes

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: Mark Waite <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/main/java/hudson/plugins/git/Revision.java

@@ -121,14 +121,13 @@ public String toString() {
 
     @Override
     public Revision clone() {
-        Revision clone;
         try {
-            clone = (Revision) super.clone();
+            Revision clone = (Revision) super.clone();
+            clone.branches = new ArrayList<>(branches);
+            return clone;
         } catch (CloneNotSupportedException e) {
             throw new RuntimeException("Error cloning Revision", e);
         }
-        clone.branches = new ArrayList<>(branches);
-        return clone;
     }
 
     @Override