Add public accessors for request pattern and method (#175)

These are very useful values to be able to access easily while processing requests. Let's make them public and reachable via the context.

Merge pull request #169 from monzo/add-router-endpoint-pattern

Add router endpoint pattern method to Typhon Request

Merge pull request #166 from monzo/add-max-connection-age-server-option

Add max connection age typhon server option

Merge pull request #161 from monzo/http2-negotiation-respect-context-…

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Use DialTLSContext instead of DialTLS when negotiating HTTP2 session

Merge pull request #160 from monzo/warn-BodyBytes

Warn that BodyBytes functions should be called on reference

error-filter: Propogate body read errors (#158)

If we fail to read the entire body, we should propogate that error.

This will allow us to stop emitting this I/O error to Sentry.

Merge pull request #153 from monzo/jacetan/check-status-before-write-…

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Don't write body for certain status codes

Merge pull request #152 from monzo/configure-server-timeouts

Add support for server timeouts

Merge pull request #151 from monzo/log-http2-stream-closed-at-debug

Log http2: stream closed as debug-level

* Add configuration for github actions

* Add extra metadata when we fail to decode a response