fix: kjør på ubuntu-latest (påkrevd for public Maven Central-bygg)

Author: RasmanTuta

.github/workflows/autobuild-lib.yml

@@ -20,4 +20,5 @@ jobs:
     with:
       java_version: 'java17'
       is_release: false
+      runner: 'ubuntu-latest'
     secrets: inherit

.github/workflows/build-release-lib.yml

@@ -35,4 +35,5 @@ jobs:
       version: ${{ inputs.version }}
       is_release: ${{ inputs.is_release }}
       reviewer: ${{ inputs.reviewer }}
+      runner: 'ubuntu-latest'
     secrets: inherit