build(deps): bump org.eclipse.edc:runtime-metamodel

Bumps org.eclipse.edc:runtime-metamodel from 0.1.4-SNAPSHOT to 0.6.1-20240409-SNAPSHOT.

---
updated-dependencies:
- dependency-name: org.eclipse.edc:runtime-metamodel
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ atomikos = "6.0.0"
 awaitility = "4.2.0"
 bouncyCastle-jdk18on = "1.75"
 cloudEvents = "2.5.0"
-edc = "0.1.4-SNAPSHOT"
+edc = "0.6.1-20240409-SNAPSHOT"
 failsafe = "3.3.2"
 h2 = "2.2.220"
 httpMockServer = "5.15.0"