fix(postgres): add workaround for gorm record not found

[jbrockopp]

Leftover work for go-vela/community#248

Related to go-gorm/gorm#4416

This is a workaround to a problem found in an upstream library.

This updates the go-vela/server/database/postgres client to specifically check for the rows returned from queries:

server/database/postgres/build.go

Lines 35 to 38 in 95e6969

	// check if the query returned a record not found error or no rows were returned
	if errors.Is(result.Error, gorm.ErrRecordNotFound) || result.RowsAffected == 0 {
	return nil, gorm.ErrRecordNotFound
	}

You'll note that we are explicitly checking the RowsAffected field is equal to 0 from the result returned by GORM.

This is required due to what initially appears to be a bug in GORM (See above go-gorm/gorm issue for more details).

GORM no longer returns record not found when a query is ran against the database and no rows are returned.

[codecov]

Codecov Report

Merging #409 (f1af6ec) into master (425ad72) will increase coverage by 0.34%.
The diff coverage is 88.65%.

@@            Coverage Diff             @@
##           master     #409      +/-   ##
==========================================
+ Coverage   84.81%   85.15%   +0.34%     
==========================================
  Files         179      179              
  Lines        5050     5073      +23     
==========================================
+ Hits         4283     4320      +37     
+ Misses        507      500       -7     
+ Partials      260      253       -7     

Impacted Files	Coverage Δ
database/postgres/user.go	57.69% <42.85%> (+3.84%)	⬆️
database/postgres/log.go	78.08% <85.71%> (+5.47%)	⬆️
database/postgres/repo.go	76.92% <85.71%> (+5.12%)	⬆️
database/postgres/build.go	93.22% <100.00%> (+7.76%)	⬆️
database/postgres/hook.go	89.47% <100.00%> (+6.14%)	⬆️
database/postgres/secret.go	81.96% <100.00%> (+3.12%)	⬆️
database/postgres/service.go	86.20% <100.00%> (+1.02%)	⬆️
database/postgres/step.go	86.20% <100.00%> (+1.02%)	⬆️
database/postgres/worker.go	89.47% <100.00%> (+1.23%)	⬆️

[KellyMerrick]

lgtm