tests : remove gh label test-whisper-cli-tiny-en

This commit removes test-whisper-cli-tiny-en from the gh label.

The motivation for this change is that until recently the tests were
disabled. But now that they are enabled some of the tests, specifically
the ci jobs that use sanatizers (e.g. thread-sanitizer) take a long time
to run as they are instrumented.
Some of these jobs also have matricies which means that there are
multiple jobs are created that all run these tests.
The suggestion here is to limit the number of tests that are run in the
ci jobs so cut down the CI build time.

tests/CMakeLists.txt

@@ -24,7 +24,7 @@ add_test(NAME ${TEST_TARGET}
     COMMAND $<TARGET_FILE:whisper-cli>
     -m ${PROJECT_SOURCE_DIR}/models/for-tests-ggml-tiny.en.bin
     -f ${PROJECT_SOURCE_DIR}/samples/jfk.wav)
-set_tests_properties(${TEST_TARGET} PROPERTIES LABELS "tiny;en;gh")
+set_tests_properties(${TEST_TARGET} PROPERTIES LABELS "tiny;en")
 
 set(TEST_TARGET test-whisper-cli-base)
 add_test(NAME ${TEST_TARGET}