Closes #32 - Implementation of Github Action that generates the relea…

…se changelog how it was previously done (#33)

.github/workflows/eumserver_release.yml

@@ -32,21 +32,29 @@ jobs:
           run: | 
             cd ./artifacts
             sha256sum * >> inspectit-ocelot-eum-server-sha256-checksums.txt
+        - name: "Get previous tag"
+          id: previoustag
+          # this gets the tag of the previous release based on the tags in the repo
+          run: echo "tag=$(git ls-remote --tags | cut --delimiter='/' --fields=3  | tail --lines=2 | head  -n -1)" >> $GITHUB_OUTPUT
         - name: "Build Changelog"
           id: build_changelog
-          uses: mikepenz/release-changelog-builder-action@v3.5.0
+          uses: heinrichreimer/github-changelog-generator-action@v2.3
           with:
-            # Config for the Changelog, reference: https://github.com/marketplace/actions/release-changelog-builder
-            configuration: ".github/workflows/eumserver-release-config.json"
-          env:
-            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+            token: ${{ secrets.GITHUB_TOKEN }}
+            sinceTag: ${{ steps.previoustag.outputs.tag }} 
+            dateFormat: 
+            maxIssues: 500
+            unreleased: false
+            author: false
+            headerLabel: "## Changelog"
+            stripGeneratorNotice: true
         - name: Create Release
           uses: softprops/action-gh-release@v0.1.15
           with:
             tag_name: ${{ github.ref_name }}
             body: ${{ steps.build_changelog.outputs.changelog }}
             files: artifacts/*
-            generate_release_notes: true
+            generate_release_notes: false
             token: ${{ github.token }}
             name: Version ${{ github.ref_name }}