build: add codeowners and stale bot

Author: ndr-brt

.github/CODEOWNERS

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+    # This file provides an overview of responsibilities in this repository.
+
+# Please note that this file does not represent all contributions to the code. What persons and organizations
+# actually contributed to each file can be seen on GitHub and is documented in the license headers.
+
+# Linked persons with write permissions are automatically added as reviewers when a pull request is opened.
+
+# Each line is a file pattern followed by one or more contact persons. The last matching pattern has the most precedence.
+# For more details, read the following article on GitHub: https://help.github.com/articles/about-codeowners/.
+
+* @technology-edc-committers

.github/workflows/stale-bot.yml

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+name: Close Inactive Issues
+
+on:
+  schedule:
+    - cron: "30 1 * * *" # once a day (1:30 UTC)
+  workflow_dispatch: # allow manual trigger
+
+jobs:
+  trigger-workflow:
+    uses: eclipse-edc/.github/.github/workflows/stale-bot.yml@main
+    secrets:
+      envGH: ${{ secrets.GITHUB_TOKEN }}