Release ggsql 0.3.0

[georgestagg]

I will populate this with things as I do them.

• Create new branch release-version-0-3-0.
• Bump version numbers, all to match:
  • ggsql
    • Main package version in [workspace.package] section in Cargo.toml.
    • All packages version in [workspace.dependencies] section in Cargo.toml.
  • tree-sitter-ggsql
    • version in tree-sitter-ggsql/package.json.
    • version in metadata in tree-sitter-ggsql/tree-sitter.json.
    • version in [project] section in tree-sitter-ggsql/pyproject.toml.
    • __version__ in tree-sitter-ggsql/bindings/python/__init__.py.
  • ggsql-jupyter
    • version in [project] section in ggsql-jupyter/pyproject.toml.
  • ggsql-vscode
    • version in ggsql-vscode/package.json.
• Update lock files:
  • Run cargo build, ensure Cargo.lock updates.
  • Run (cd ggsql-wasm && ./build-wasm.sh && cd demo && npm install), ensure that ggsql-wasm/demo/package-lock.json updates.
  • Run (cd ggsql-vscode && npm install), ensure that ggsql-vscode/package-lock.json updates.
• Ensure news bullets are up to date, add a new header for this release.
  • CHANGELOG.md
  • ggsql-vscode/CHANGELOG.md
• Push the branch, make a PR (Bump version to 0.3.0 and prepare for release #400).
• Watch CI. Once all green, and we are happy, squash-merge the PR.
• Create a new GitHub release, create a new tag in the form v0.3.0
  • Select the commit we just squash merged in for the new tag.
  • Click the button to generate a changelog automatically so our friends all get tagged in the release.
  • Check the box to set as the latest release.
• After releasing, watch CI for issues. If anything is red, we must fix, bump patch version, and try again.
  • For minor issues, we might want to manually fix up and publish. Currently George's npm and cargo accounts must be used to do this.
• After all green, open Issues in downstream repos asking to update their dependency on ggsql to the latest version,
  • ggsql-r (Update ggsql dependency to v0.3.0 ggsql-r#7)
  • ggsql-python (Update ggsql dependency to v0.3.1 ggsql-python#4)
  • ggsql-duckdb (Update ggsql dependency to v0.3.0 ggsql-duckdb#2)
• Update the ggsql skill at posit-dev/skills