Add compiler path to `$PATH` for subcommands #12848

Job	Run time
check_format	1m 40s
x86_64-gnu-test (1.7.3)	34m 56s
x86_64-gnu-test (1.8.2)	37m 22s
x86_64-gnu-test (1.9.2)	35m 12s
x86_64-gnu-test (1.10.1)	37m 2s
x86_64-gnu-test (1.11.2)	34m 55s
x86_64-gnu-test (1.12.2)	34m 15s
x86_64-gnu-test-preview_mt	5m 38s
x86_64-gnu-test (1.13.3)	35m 6s
x86_64-gnu-test (1.14.0)	34m 52s
x86_64-gnu-test (1.0.0, FLAGS=-Dwithout_ffi USE_PCRE1=true)	33m 22s
x86_64-musl-test	37m 6s
x86_64-gnu-test (1.1.1, FLAGS=-Dwithout_ffi USE_PCRE1=true)	34m 5s
x86_64-gnu-test (1.2.2, USE_PCRE1=true)	33m 16s
x86_64-gnu-test (1.3.2, USE_PCRE1=true)	33m 48s
x86_64-gnu-test (1.4.1, USE_PCRE1=true)	33m 44s
x86_64-gnu-test (1.5.1, USE_PCRE1=true)	33m 58s
x86_64-gnu-test (1.6.2, USE_PCRE1=true)	34m 18s
	9h 24m 35s

Provide feedback