internal: passing -pkg-config-path to moonc link-core #1858

Job	Run time
license header check	4s
mdBook Check	4s
CCAA-check	4s
typo-check	3s
bleeding-test (ubuntu-latest)	3m 36s
bleeding-test (macos-latest)	2m 53s
stable-test (ubuntu-latest)	2m 51s
bleeding-test (macos-13)	5m 57s
stable-test (macos-latest)	2m 17s
bleeding-test (windows-latest)	4m 3s
stable-test (macos-13)	4m 36s
stable-test (windows-latest)	3m 24s
coverage	0s
	29m 52s

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