Update actions/checkout action to v4 #1423

Job	Run time
Generate job matrix	9s
Check Backwards Compatibility (locked, 8.1, ubuntu-latest)	15s
Composer Require Checker (locked, 8.1, ubuntu-latest)	19s
Check Backwards Compatibility (locked, 8.2, ubuntu-latest)	16s
Composer Require Checker (locked, 8.2, ubuntu-latest)	28s
Check Backwards Compatibility (locked, 8.3, ubuntu-latest)	1m 17s
Composer Require Checker (locked, 8.3, ubuntu-latest)	21s
QA Checks (PHPUnit [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
QA Checks (PHPUnit [8.1, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 1s
QA Checks (PHPUnit [8.1, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	55s
QA Checks (PHPUnit [8.2, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	32s
QA Checks (PHPUnit [8.2, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	30s
QA Checks (PHPUnit [8.3, lowest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	53s
QA Checks (PHPUnit [8.3, latest], ubuntu-latest, laminas/laminas-continuous-integration-action@v1...	1m 1s
QA Checks (Infection [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@...	2m 34s
QA Checks (PHPCodeSniffer [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-ac...	55s
QA Checks (Psalm [8.1, locked], ubuntu-latest, laminas/laminas-continuous-integration-action@v1, ...	1m 0s
	13m 21s

Provide feedback