sagemathgh-39194: Reimplement release creation workflow
    
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Fixes the issue raised in
sagemath/website#480 (comment)

I manually edited the release
https://github.com/sagemath/sage/releases/tag/10.5 generated by an
workflow implemented in sagemath/website#480 to
correct the changelog https://github.com/sagemath/website/blob/master/sr
c/changelogs/sage-10.5.txt, which is now in good shape. But see, for
example, https://github.com/sagemath/sage/releases/tag/10.4 that
contains all changes in betas and rcs.

This PR is for automatic generation of a release that contains only
changes from the last release.

test:
https://github.com/kwankyu/sage/releases
https://github.com/kwankyu/sage/actions/runs/12485317339/job/34844199681

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- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

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URL: sagemath#39194
Reported by: Kwankyu Lee
Reviewer(s): Soham Rane

Author: Release Manager

.github/workflows/dist.yml

@@ -119,10 +119,36 @@ jobs:
         with:
           name: dist
           path: dist
-      - uses: softprops/action-gh-release@v2
+      - name: Create release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          latest_release_tag=$(curl -s https://api.github.com/repos/${{ github.repository }}/releases \
+          | jq -r 'sort_by(.created_at) | last(.[]).tag_name')
+          release_notes=$(curl -s \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer $GITHUB_TOKEN" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/${{ github.repository }}/releases/generate-notes \
+            -d "{
+              \"tag_name\": \"${{ github.ref_name }}\",
+              \"previous_tag_name\": \"$latest_release_tag\"
+            }" | jq -r '.body')
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer $GITHUB_TOKEN" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/${{ github.repository }}/releases \
+            -d "{
+              \"tag_name\": \"${{ github.ref_name }}\",
+              \"prerelease\": ${{ contains(github.ref, 'beta') || contains(github.ref, 'rc') }},
+              \"body\": \"$release_notes\"
+            }"
+      - name: Create release assets
+        uses: softprops/action-gh-release@v2
         with:
-          generate_release_notes: true
-          prerelease: ${{ contains(github.ref, 'beta') || contains(github.ref, 'rc') }}
           files: |
             dist/*
             upstream/*