Bump concurrent-ruby from 1.2.2 to 1.2.3 #2028

Job	Run time
test-ruby-matrix (4, 0)	2m 26s
test-ruby-matrix (4, 1)	3m 20s
test-ruby-matrix (4, 2)	2m 32s
test-ruby-matrix (4, 3)	3m 10s
Dependency Review scan / dependency-review-pr	6s
Dependency Review scan / dependency-review-push	0s
CodeQL SAST scan / Analyze	1m 22s
Lint JavaScript / Run Standardx	14s
Lint Ruby / Run RuboCop	22s
Lint SCSS / Run Stylelint	9s
Security Analysis / Run Brakeman	15s
SNYK security analysis / sast	6s
SNYK security analysis / sca	6s
Test JavaScript / Run Jasmine	1m 17s
Test Ruby	1s
	15m 26s

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