ci lint:scan-build: fix the error count

ci lint:scan-build: fix the error count

The new reports are:
./lib/rules/api.c:301:3: warning: Memory copy function overflows destination buffer
         memcpy(key_data_ruleset_end, &KEY_EXACT_MATCH, sizeof(KEY_EXACT_MATCH));
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./lib/rules/api.c:506:2: warning: Memory copy function overflows destination buffer
 memcpy(key.data, &KEY_EXACT_MATCH, sizeof(KEY_EXACT_MATCH));
 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./lib/rules/api.c:699:2: warning: Memory copy function overflows destination buffer
 memcpy(key.data, &KEY_ZONELIKE_A, sizeof(KEY_ZONELIKE_A));
 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 warnings generated.

I re-checked those places, and I believe they can never overflow.
I regularly run with ASAN as well, which would catch overflows.
I can't see a simple way of amending the code in a way
that the linter might be happy.