[Instrumentation] Improve spans for cache

[jmorrell-cloudflare]

Reworks how we're generating and annotating cache spans

Removes cache_control.expiration, cache_control.cacheability in favor of using the Cache-Control header value directly

New attributes:

cache_match

cache.request.ignore_method
cache.request.url
cache.request.method
cache.request.header.range
cache.request.header.if_modified_since
cache.request.header.if_none_match
cache.response.status_code
cache.response.body.size
cache.response.cache_status
cache.response.success

cache_put

cache.request.url
cache.request.method
cache.request.payload.status_code
cache.request.payload.header.cache_control
cache.request.payload.header.cache_tag
cache.request.payload.header.etag
cache.request.payload.header.expires
cache.request.payload.header.last_modified
cache.request.payload.size
cache.response.success

cache_delete

cache.request.ignore_method
cache.request.url
cache.response.status_code
cache.response.success

[codspeed-hq]

CodSpeed Performance Report

Merging #5399 will not alter performance

_{Comparing jmorrell/cache-instrumentation (042f8d8) with main (0a9873d)}

Summary

✅ 33 untouched
⏩ 9 skipped¹

Footnotes

1. 9 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩