lib: nghttp2: Disable auto-detection for OpenSSL #8950

Job	Run time
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, gcc)	12m 29s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, clang)	12m 50s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, gcc)	11m 50s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, clang)	11m 40s
run-ubuntu-unit-tests (-DFLB_SMALL=On, gcc)	12m 6s
run-ubuntu-unit-tests (-DFLB_SMALL=On, clang)	12m 42s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, gcc)	12m 1s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, clang)	12m 3s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, gcc)	12m 10s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, clang)	12m 12s
run-ubuntu-unit-tests (-DFLB_COVERAGE=On, gcc)	44m 16s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, gcc)	11m 53s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, clang)	11m 57s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, gcc)	11m 44s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, clang)	12m 1s
run-macos-unit-tests (-DFLB_JEMALLOC=Off)	11m 25s
run-macos-unit-tests (-DFLB_SANITIZE_MEMORY=On)	11m 30s
run-macos-unit-tests (-DFLB_SANITIZE_THREAD=On)	12m 4s
Unit tests (matrix)	1s
	4h 8m 54s

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