IBX-4145: Fix deprecation warnings due to set-output

Author: ibexa-yuna

Dockerfile

@@ -3,7 +3,7 @@ ADD . /app
 WORKDIR /app
 
 # We are installing a dependency here directly into our app source dir
-RUN pip install --target=/app pygithub==1.54.1 jira
+RUN pip install --target=/app pygithub==1.54.1 jira github-action-utils==1.1.0
 
 # A distroless container image with Python and some basics like SSL certificates
 # https://github.com/GoogleContainerTools/distroless

action.yml

@@ -18,4 +18,4 @@ outputs:
     description: "Changelog output"
 runs:
   using: "docker"
-  image: "docker://ghcr.io/ibexa/changelog-generator-action:v2.0.2"
+  image: "docker://ghcr.io/ibexa/changelog-generator-action:v2.0.3"

main.py

@@ -4,6 +4,7 @@
 
 from github import Github, UnknownObjectException
 from jira import JIRA, JIRAError
+from github_action_utils import set_output
 
 JIRA_SERVER = "https://issues.ibexa.co"
 JIRA_PREFIX = f"{JIRA_SERVER}/browse/"
@@ -157,7 +158,7 @@ def main():
     if bare_output:
         print(messages)
     else:
-        print(f"::set-output name=changelog::{prepare_output(messages)}")
+        set_output("changelog", prepare_output(messages))
 
 
 if __name__ == "__main__":