Fix: error message using correct keepalive config value

[BatmanAoD]

kpTimeoutLeft is calculated from kp.Timeout, but the error message implies it's based on kp.Time.

RELEASE NOTES:

• transport/server: use the proper timeout value when keepalive pings are not ack'd in time

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: BatmanAoD / name: Kyle J Strand (5b3db47)

[codecov]

Codecov Report

Merging #7038 (5b3db47) into master (4f43d2e) will increase coverage by 0.04%.
Report is 19 commits behind head on master.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7038      +/-   ##
==========================================
+ Coverage   82.44%   82.48%   +0.04%     
==========================================
  Files         296      296              
  Lines       31475    31475              
==========================================
+ Hits        25948    25962      +14     
+ Misses       4471     4456      -15     
- Partials     1056     1057       +1     

Files	Coverage Δ
internal/transport/http2_server.go	90.33% <100.00%> (-0.47%)	⬇️

... and 13 files with indirect coverage changes

[dfawley]

LGTM, but you will need to sign off on the CLAs (by clicking the links from the comment from the bot). Thanks!

[BatmanAoD]

@dfawley Talking to my company about it now; it will probably be a couple of weeks because this fix isn't actually particularly high-priority. (I should have just opened a ticket, since the fix is so trivial...)

[github-actions]

This PR is labeled as requiring an update from the reporter, and no update has been received after 6 days. If no update is provided in the next 7 days, this issue will be automatically closed.

[BatmanAoD]

I will be discussing the CLA with the appropriate person at my company on April 2nd.

[github-actions]

This PR is labeled as requiring an update from the reporter, and no update has been received after 6 days. If no update is provided in the next 7 days, this issue will be automatically closed.

[arvindbr8]

@BatmanAoD -- Did your meeting happen? Hopefully it went well.

[BatmanAoD]

@arvindbr8 It sounds like the CLA shouldn't be a problem for us; I've started the signature process.

[arvindbr8]

Nice, now we can see more PR's from you @BatmanAoD :) . Thanks so much for the PR!