Update Go version to 1.19.11

[asf-ci-trafficcontrol]

What does this PR (Pull Request) do?

This PR makes the Go components of Traffic Control build using Go version 1.19.11 and updates the golang.org/x/ dependencies.

See the Go 1.19.11 release notes:

go1.19.11 (released 2023-07-11) includes a security fix to the net/http package, as well as bug fixes to cgo, the cover tool, the go command, the runtime, and the go/printer package. See the Go 1.19.11 milestone on our issue tracker for details.

Which Traffic Control components are affected by this PR?

• Traffic Control Cache Config (t3c, formerly ORT)
• Traffic Control Health Client (tc-health-client)
• Traffic Control Client
• Traffic Monitor
• Traffic Ops
• Traffic Stats
• Grove
• CDN in a Box - Enroller
• CI tests for Go components
• Build system - Go version in builder images

What is the best way to verify this PR?

Run unit tests and API tests. Since this is only a patch-level version update, the only changes were bugfixes. Breaking changes would be unexpected.

The following criteria are ALL met by this PR

• Existing tests are sufficient, no additional tests necessary
• The documentation only mentions the major Go version, no documentation updates necessary.
• The changelog already mentions updating to Go 1.19, no additional changelog message necessary.
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

[codecov]

Codecov Report

Merging #7643 (23b6f2b) into master (c6fcfea) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #7643      +/-   ##
============================================
- Coverage     27.42%   27.42%   -0.01%     
  Complexity       98       98              
============================================
  Files           686      686              
  Lines         79170    79172       +2     
  Branches         90       90              
============================================
  Hits          21714    21714              
- Misses        55387    55389       +2     
  Partials       2069     2069              

Flag	Coverage Δ
golib_unit	48.30% <ø> (ø)
grove_unit	4.60% <ø> (ø)
t3c_unit	5.28% <ø> (ø)
traffic_monitor_unit	21.30% <ø> (ø)
traffic_ops_integration	69.42% <ø> (ø)
traffic_ops_unit	22.95% <ø> (-0.01%)	⬇️
traffic_stats_unit	10.14% <ø> (ø)
unit_tests	24.10% <ø> (-0.01%)	⬇️
v3	57.79% <ø> (ø)
v4	79.18% <ø> (ø)
v5	78.63% <ø> (ø)

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see 1 file with indirect coverage changes

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