Bugfix: enable strict mode for base64_decode #2822

Job	Run time
Sanity checks	18s
Security checks	28s
Syntax and unit tests, PHP 7.1, ubuntu-latest	1m 2s
Syntax and unit tests, PHP 7.2, ubuntu-latest	2m 8s
Syntax and unit tests, PHP 7.3, ubuntu-latest	1m 4s
Syntax and unit tests, PHP 7.4, ubuntu-latest	1m 30s
Syntax and unit tests, PHP 8.0, ubuntu-latest	3m 51s
Syntax and unit tests, PHP 8.1, ubuntu-latest	1m 11s
Syntax and unit tests, PHP 8.2, ubuntu-latest	1m 6s
Syntax and unit tests, PHP 8.3, ubuntu-latest	1m 12s
Syntax and unit tests, PHP 7.1, windows-latest	3m 48s
Syntax and unit tests, PHP 7.2, windows-latest	2m 40s
Syntax and unit tests, PHP 7.3, windows-latest	2m 35s
Syntax and unit tests, PHP 7.4, windows-latest	2m 46s
Syntax and unit tests, PHP 8.0, windows-latest	4m 46s
Syntax and unit tests, PHP 8.1, windows-latest	4m 57s
Syntax and unit tests, PHP 8.2, windows-latest	4m 4s
Syntax and unit tests, PHP 8.3, windows-latest	4m 15s
Quality control	0s
	43m 41s

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