upgrade access-modifier to 1.12
with 1.12 annotation are kept for runtime, which is a requirement for [configuration-as-code](https://github.com/jenkinsci/configuration-as-code-plugin) to detect technical attribute which should not be exposed (typically : `Jenkins#setInstallState()`)
@@ -94,7 +94,7 @@ THE SOFTWARE.
<animal.sniffer.skip>${skipTests}</animal.sniffer.skip>
<findbugs-maven-plugin.version>3.0.4</findbugs-maven-plugin.version>
<findbugs.failOnError>true</findbugs.failOnError>
- <access-modifier.version>1.11</access-modifier.version>
+ <access-modifier.version>1.12</access-modifier.version>
<access-modifier-annotation.version>${access-modifier.version}</access-modifier-annotation.version> <!-- differing only where needed for timestamped snapshots -->
<access-modifier-checker.version>${access-modifier.version}</access-modifier-checker.version>
