Dependency(deps): Bump org.eclipse.emf.ecore from 2.27.0 to 2.28.0

Bumps org.eclipse.emf.ecore from 2.27.0 to 2.28.0.

---
updated-dependencies:
- dependency-name: org.eclipse.emf:org.eclipse.emf.ecore
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -80,7 +80,7 @@
 
         <antlr2.version>2.7.7</antlr2.version>
         <antlr4.version>4.11.1</antlr4.version>
-        <emf.version>2.27.0</emf.version>
+        <emf.version>2.28.0</emf.version>
         <emf.ecore.version>2.25.0</emf.ecore.version>
         <emf.ecore.xmi.version>2.16.0</emf.ecore.xmi.version>