use try-catch to simplify instanceOf checks #1807

Job	Run time
Diff content of NPM package	1m 30s
Security check of added dependencies	4s
ci / Check for commonly ignored files	3s
ci / Check health of package-lock.json file	31s
ci / Lint source files	1m 8s
ci / Build 'denoDist' artifact	51s
ci / Build 'npmDist' artifact	1m 55s
ci / Run CodeQL security scan	1m 52s
ci / Run fuzzing tests	48s
ci / Run integration tests	1m 34s
ci / Run tests on Node v16	42s
ci / Run tests on Node v18	44s
ci / Build website	2m 20s
ci / Run tests on Node v19	43s
	14m 45s

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