fix: revert release notes to match main

The release.yml release notes template should not change in this PR.
PyPI install instructions can be added to release notes in a future
PR once publishing is confirmed working.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: mnriem

.github/workflows/release.yml

@@ -70,12 +70,6 @@ jobs:
           specify init my-project
           \`\`\`
 
-          Or from [PyPI](https://pypi.org/project/specify-cli/) (once published for this release):
-
-          \`\`\`bash
-          uv tool install specify-cli@${VERSION_NO_V}
-          \`\`\`
-
           NOTES_EOF
 
           echo "## What's Changed" >> release_notes.md