chore(deps): update dependency suzuki-shunsuke/pinact to v3.7.3

[renovate]

This PR contains the following updates:

Package	Update	Change
suzuki-shunsuke/pinact	patch	v3.7.2 -> v3.7.3

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Release Notes

suzuki-shunsuke/pinact (suzuki-shunsuke/pinact)

v3.7.3

Compare Source

#​1309 Fix some bugs

1. -verify is ignored if -u is used
2. versions aren't pinned and verified if version comments are semver

number	code	command	before	after
1	uses: actions/checkout@v6.0.1 # v6.0.1	pinact run -u	Not pinned	Pinned
2	uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.1	pinact run -u -verify	success	failure action_version must be equal to commit_hash_of_version_annotation
3	uses: actions/checkout@v6.0.1 # v6.0.1	pinact run, pinact run -verify	Not pinned	Pinned
4	uses: actions/checkout@main # v6.0.1	pinact run, pinact run -verify	success	failure action can't be pinned

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