[GR-53802] Better .gitignore patterns to only exclude C build files i… #4673

Job	Run time
build native	13m 13s
build jvm	6m 27s
ruby/spec on CRuby 3.0	3m 18s
lint	13m 46s
ruby/spec on CRuby 3.1	3m 32s
ruby/spec on CRuby 3.2	2m 55s
specs :truffle	9m 6s
test integration	11m 58s
specs :language :core	12m 29s
fast specs	2m 27s
specs :library :cext :security :command_line :tracepoint	9m 36s
run MRI tests on native	13m 42s
test native	3m 18s
	1h 45m 47s

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