GRM-35: fix: enforce tests pass before tagging a release

The release script now runs lint and tests before committing or tagging. If either fails, the release is aborted. Also fixes test_cli_version to use __version__ dynamically.

Closes GRM-35

tests/unit/test_cli.py

@@ -4,6 +4,7 @@ from unittest.mock import MagicMock, patch
 
 from click.testing import CliRunner
 
+from gitea_runner_manager import __version__
 from gitea_runner_manager.cli import cli
 
 
@@ -12,7 +13,7 @@ class TestCLI:
         runner = CliRunner()
         result = runner.invoke(cli, ["--version"])
         assert result.exit_code == 0
-        assert "0.2.0" in result.output
+        assert __version__ in result.output
 
     @patch("gitea_runner_manager.cli.RunnerManager")
     def test_install(self, mock_manager_class: MagicMock) -> None: