41098: roachtest/jepsen: don't fail test if retrieving invoke.log fails r=nvanbenschoten a=nvanbenschoten

Fixes #41062.

Release justification: Testing only.

Release note: None

41104: kv: check for 1-phase commit after request, not before r=nvanbenschoten a=nvanbenschoten

Found while verifying that #40518 didn't negatively impact YCSB performance.
As it turns out, most txns that restart hit the check in DistSender instead,
and that ends up being critical for forward progress. Without it, transactions
appear to starve because they never write intents.

The commit doesn't make any changes there, but it does fix an issue where
1PC transactions were being incorrectly detected. The detection was ignoring
the fact that a 1PC attempt could be rejected by DistSender or a Replica.
We now tie the metric to whether an EndTransaction actually evaluated as
a 1PC txn instead of tying it to whether the EndTransaction _wanted_ to
be evaluated as a 1PC txn.

Release justification: low risk and improves metric reporting

Release note: None

41127: Add myself to AUTHORS r=miretskiy a=miretskiy

Authors += Myself

Co-authored-by: Nathan VanBenschoten <nvanbenschoten@gmail.com>
Co-authored-by: Yevgeniy Miretskiy <yevgeniy@cockroachlabs.com>