x509-ocsp: remove lifetimes and implement `AsExtension` (#1241) #1462

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	4m 44s
test (1.65.0)	4m 46s
build (1.65.0, wasm32-unknown-unknown)	5m 25s
test (stable)	16s
build (stable, thumbv7em-none-eabi)	10s
build (stable, wasm32-unknown-unknown)	16s
minimal-versions / minimal-versions	26s
	16m 3s

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