Skip running PHPUnit tests on `php:8.4` with lowest dependencies #3210

Job	Run time
Composer Require Checker (locked, 8.3, ubuntu-latest)	37s
Check Backwards Compatibility (locked, 8.2, ubuntu-latest)	17s
Generate job matrix	6s
Check Backwards Compatibility (locked, 8.3, ubuntu-latest)	13s
Check Backwards Compatibility (locked, 8.4, ubuntu-latest)	14s
QA Checks (README Linting [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	25s
QA Checks (PHPUnit [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	58s
QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	56s
QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 1s
QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	56s
QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
QA Checks (PHPUnit [8.4, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	52s
QA Checks (PHPCodeSniffer [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	29s
QA Checks (Psalm [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1, ...	35s
QA Checks (Infection (PCOV) [8.2, locked], ubuntu-latest, laminas/laminas-continuous-integration-...	7m 6s
	15m 40s

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