fix: allow for use of both manual & fetchEvent based HTTP #803

Job	Run time
build-splicer (ubuntu-latest)	2m 0s
build-splicer (windows-latest)	4m 56s
lint	10s
build (debug)	14s
build (weval)	9s
build (release)	8s
test-example	45s
test (23.10.0, windows-latest, weval)	12m 31s
test (23.10.0, windows-latest, release)	7m 36s
test (23.10.0, ubuntu-latest, release)	6m 34s
test (23.10.0, macos-latest, release)	5m 15s
test (23.10.0, ubuntu-latest, weval)	10m 4s
test (23.10.0, windows-latest, debug)	8m 39s
test (23.10.0, ubuntu-latest, debug)	7m 43s
test (23.10.0, macos-latest, debug)	5m 28s
test (23.10.0, macos-latest, weval)	8m 4s
	1h 20m 16s

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