Rollup merge of #158922 - durin42:llvm-23-clean-up-test-constraint, r=nikic tests: clean up over-constraint on LLVM feature count Upstream dropped a feature, resulting in the invalid-attribute test failing because it was expecting "and 76 more" but now it's "and 75 more". Adjust the test to do a replacement with a placeholder on that text so the test is less brittle.
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