Merge #3015

3015: Replace deprecated set-output in GitHub actions r=curquiza a=funilrys

# Pull Request

This patch fixes #3011.

This patch fixes the deprecation warning regarding the usage of `set-output`.
This patch fixes the issues by switching the following format:

```
echo ::set-output name=[name]::[value]
```

into the following format:

```
echo "[name]=[value]" >> ${GITHUB_OUTPUT}
```


## Related issue
Fixes #3011

## What does this PR do?
- Fix CI/CD deprecation warnings.

## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?

Thank you so much for contributing to Meilisearch!


Co-authored-by: funilrys <contact@funilrys.com>
Co-authored-by: Clémentine Urquizar - curqui <clementine@meilisearch.com>

.github/workflows/milestone-workflow.yml

@@ -41,10 +41,10 @@ jobs:
           echo version: $MILESTONE_VERSION
           if [[ $MILESTONE_VERSION =~ ^v[0-9]+\.[0-9]+\.0$ ]]; then
             echo 'This is NOT a patch release'
-            echo ::set-output name=is-patch::false
+            echo "is-patch=false" >> $GITHUB_OUTPUT
           elif [[ $MILESTONE_VERSION =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
             echo 'This is a patch release'
-            echo ::set-output name=is-patch::true
+            echo "is-patch=true" >> $GITHUB_OUTPUT
           else
             echo "Not a valid format of release, check the Milestone's title."
             echo 'Should be vX.Y.Z'

.github/workflows/publish-binaries.yml

@@ -23,9 +23,9 @@ jobs:
           escaped_tag=$(printf "%q" ${{ github.ref_name }})
 
           if [[ $escaped_tag =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-            echo ::set-output name=stable::true
+            echo "stable=true" >> $GITHUB_OUTPUT
           else
-            echo ::set-output name=stable::false
+            echo "stable=false" >> $GITHUB_OUTPUT
           fi
       - name: Check release validity
         if: github.event_name != 'schedule' && steps.check-tag-format.outputs.stable == 'true'

.github/workflows/publish-docker-images.yml

@@ -25,9 +25,9 @@ jobs:
           escaped_tag=$(printf "%q" ${{ github.ref_name }})
 
           if [[ $escaped_tag =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-            echo ::set-output name=stable::true
+            echo "stable=true" >> $GITHUB_OUTPUT
           else
-            echo ::set-output name=stable::false
+            echo "stable=false" >> $GITHUB_OUTPUT
           fi
 
       # Check only the validity of the tag for official releases (not for pre-releases or other tags)