Bump spotbugs from 4.4.0 to 4.4.1

Bumps [spotbugs](https://github.com/spotbugs/spotbugs) from 4.4.0 to 4.4.1.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.4.0...4.4.1)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -51,7 +51,7 @@
     <checkstyle.version>9.0</checkstyle.version>
 
     <spotbugs.plugin.version>4.3.0</spotbugs.plugin.version>
-    <spotbugs.impl.version>4.4.0</spotbugs.impl.version>
+    <spotbugs.impl.version>4.4.1</spotbugs.impl.version>
 
     <commons.mockito.version>3.12.4</commons.mockito.version>
     <commons.jacoco.version>0.8.7</commons.jacoco.version>

src/changes/changes.xml

@@ -83,7 +83,7 @@ The <action> type attribute can be add,update,fix,remove.
     <action                  type="update" dev="ggregory" due-to="Dependabot">Bump graalvm.version from 20.2.0 to 21.2.0 #185 #198 #206 #227 #252.</action>
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">Update commons.japicmp.version 0.14.3 -> 0.15.3.</action>
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">Update commons.jacoco.version 0.8.5 to 0.8.7; fixes Java 15 build.</action>
-    <action                  type="update" dev="ggregory" due-to="Gary Gregory">Update spotbugs from 4.1.3 to 4.4.0 #175, 189, #209 #218 #247 #256.</action>
+    <action                  type="update" dev="ggregory" due-to="Gary Gregory">Update spotbugs from 4.1.3 to 4.4.1 #175, 189, #209 #218 #247 #256 #264.</action>
     <action                  type="update" dev="kinow" due-to="Dependabot">Bump maven-checkstyle-plugin from 3.1.1 to 3.1.2 #202.</action>
     <action                  type="update" dev="kinow" due-to="Dependabot">Bump actions/cache from v2 to v2.1.6 #205 #217 #234.</action>
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">Update commons-lang3 3.11 -> 3.12.0.</action>