ci(release-plz): tag sqlshield-py despite publish = false

sqlshield-py is `publish = false` in Cargo.toml because pyo3 publishes to
PyPI, not crates.io. Without this override release-plz skips its release
flow entirely, so no `sqlshield-py-vX.Y.Z` tag is pushed and the maturin
CI workflow that uploads wheels never fires. Force the git tag + GitHub
release for sqlshield-py while keeping crates.io publish disabled.

Author: davidsmfreire

release-plz.toml

@@ -3,3 +3,14 @@ changelog_update = true
 git_release_enable = true
 publish = true
 semver_check = false
+
+# sqlshield-py is a PyPI-only crate (`publish = false` in its Cargo.toml
+# blocks crates.io upload). We still want release-plz to bump its
+# version, push a git tag, and create a GitHub release — the tag push is
+# what triggers the maturin CI workflow that uploads wheels to PyPI.
+[[package]]
+name = "sqlshield-py"
+publish = false
+release = true
+git_tag_enable = true
+git_release_enable = true