fix(releasekit): fix git push argument order, boost test coverage to 92%, fix lint errors #4323

Job	Run time
Lint and Format	19s
Type Check (pyright)	42s
Type Check (ty)	32s
Sample Tests (web-endpoints-hello, Python 3.12)	21s
Security and Compliance	1m 23s
Detect Changes	7s
Type Check (pyrefly)	46s
Tests (Python 3.12)	2m 45s
Tests (Python 3.11)	2m 27s
Tests (Python 3.10)	2m 24s
Tests (Python 3.13)	2m 16s
Tests (Python 3.14)	1m 39s
Tool Tests (releasekit, Python 3.11)	1m 19s
Tool Tests (releasekit, Python 3.13)	1m 5s
Tool Tests (releasekit, Python 3.12)	1m 10s
Tool Tests (releasekit, Python 3.14)	1m 8s
Tool Tests (releasekit, Python 3.10)	1m 8s
Conform Tests (Python ${{ matrix.python-version }})	0s
Build Distributions	0s
	21m 31s

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