Migrate to use uber gomock

[khanhtc1202]

What this PR does:

golang/mock is archived, and the project has been migrated under uber-go. We should use the latest gomock instead

Why we need it:

Which issue(s) this PR fixes:

Part of #5429
Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.94%. Comparing base (0e4fbc0) to head (21e9286).
Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5426      +/-   ##
==========================================
- Coverage   25.95%   25.94%   -0.01%     
==========================================
  Files         451      451              
  Lines       48799    48799              
==========================================
- Hits        12665    12663       -2     
- Misses      35127    35130       +3     
+ Partials     1007     1006       -1     

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[Warashi]

Nice catch 👍🏻

[Warashi]

📝
After merging this PR, we have to update the line below.

pipecd/Makefile

Line 222 in 7fc6bcc

docker run --rm -v ${PWD}:/repo -it --entrypoint ./tool/codegen/codegen.sh ghcr.io/pipe-cd/codegen@sha256:3fd8e22eeab21bab2a2f6c1d2770b069922f4973465d57386d672574931943e8 /repo #v0.47.3-rc0-2-g462b842

pipecd/.github/workflows/gen.yaml

Line 14 in 7fc6bcc

uses: docker://ghcr.io/pipe-cd/codegen@sha256:3fd8e22eeab21bab2a2f6c1d2770b069922f4973465d57386d672574931943e8 #v0.47.3-rc0-2-g462b842

[t-kikuc]

I got it, thank you

Update, June 2023: This repo and tool are no longer maintained. Please see go.uber.org/mock for a maintained fork instead.

https://github.com/golang/mock