Stability fixes

[vigoo]

Trying to stabilize the integration tests

• adds request timeout configuration support but only enables it on a single edge (registry svc calls from executor)
• fixes a race condition in our Cache type and adds lot of tests to it
• removes an async recursion from HttpWorkerLogEventStream that I've seen causing stack overflow
• make log streaming in the test framework not panic if the connection is dropped from it
• using a deterministic idempotency key for initialize to make it impossible to double-initialize (even if some more race condition is not fixed yet)
• updated test-r so it should now better print failures on CI when using CTRF reporting
• fixes an oplog opening race condition that was probably the cause of many issues in the "executor is overloaded" case (not necessarily during tests on CI)
• investigated a lot about a weird flaky deserialization error. It turned out to be a problem in the oplog query, which used a wrong agent-type metadata when enriching some of the oplog entries. Whether it ran into the wrong metadata or not was depending on the runner (hash-based, probably). Fixed now
• Found and fixed an issue in the wasi:http durability wrapper that could lead to "unexpected oplog entry" during recovery - but not the same that we've seen on the effect.ai live demo. (None of our wasi:http libraries did this usage pattern in practice)

[noise64]

👏