Bump org.eclipse.microprofile:microprofile-parent from 2.12-RC1 to 2.12 (#712)

Bumps [org.eclipse.microprofile:microprofile-parent](https://github.com/eclipse/microprofile-parent) from 2.12-RC1 to 2.12.
- [Commits](https://github.com/eclipse/microprofile-parent/commits/2.12)

---
updated-dependencies:
- dependency-name: org.eclipse.microprofile:microprofile-parent
  dependency-version: '2.12'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.eclipse.microprofile</groupId>
         <artifactId>microprofile-parent</artifactId>
-        <version>2.12-RC1</version>
+        <version>2.12</version>
     </parent>
 
     <groupId>org.eclipse.microprofile.openapi</groupId>