explicitly enable internal_config access for tests only #9967

Job	Run time
Lints and doc tests on ubuntu-latest	2m 0s
Unit tests on ubuntu-latest	23m 48s
Typos Check	4s
Lints and doc tests on windows-latest	5m 39s
Unit tests on windows-latest	34m 46s
Lints and doc tests on macos-13	4m 34s
Unit tests on macos-13	14m 22s
Lints and doc tests on macos-14	1m 51s
Unit tests on macos-14	14m 59s
Memory leak checks	0s
CI status checks	1s
	1h 42m 4s

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