wasm: restore support for some targets #8626

Job	Run time
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, gcc)	12m 29s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, clang)	12m 20s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, gcc)	11m 32s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, clang)	11m 45s
run-ubuntu-unit-tests (-DFLB_SMALL=On, gcc)	11m 43s
run-ubuntu-unit-tests (-DFLB_SMALL=On, clang)	12m 27s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, gcc)	11m 53s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, clang)	11m 50s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, gcc)	11m 53s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, clang)	11m 53s
run-ubuntu-unit-tests (-DFLB_COVERAGE=On, gcc)	43m 10s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, gcc)	11m 45s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, clang)	11m 36s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, gcc)	11m 38s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, clang)	11m 41s
run-macos-unit-tests (-DFLB_JEMALLOC=Off)	10m 51s
run-macos-unit-tests (-DFLB_SANITIZE_MEMORY=On)	11m 16s
run-macos-unit-tests (-DFLB_SANITIZE_THREAD=On)	13m 21s
Unit tests (matrix)	1s
	4h 5m 4s

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