fix(ai-proxy): handle malformed JSON in analytics #39547

Job	Run time
Metadata	13s
build / Build dependencies	12s
PDK tests	4m 0s
Schedule busted tests to run	10s
Lint and Doc tests	22s
Busted test runner 5	24m 41s
Busted test runner 6	17m 36s
Busted test runner 3	18m 17s
Busted test runner 2	15m 28s
Busted test runner 1	14m 44s
Busted test runner 7	14m 12s
Busted test runner 4	25m 46s
Cleanup and Luacov stats aggregator	-1s
	2h 15m 40s

Provide feedback