Bump rackup from 1.0.0 to 2.2.1 #10981

Job	Run time
Lint SCSS / Run Stylelint	14s
CodeQL SAST scan / Analyze	2m 15s
Lint ERB / Run ERB lint	43s
Dependency Review scan / dependency-review-pr	14s
Dependency Review scan / dependency-review-push	0s
Lint JavaScript / Run Standardx	15s
Prettier / Run Prettier	16s
Lint Ruby / Run RuboCop	39s
Security Analysis / Run Brakeman	38s
Test features / feature-test-matrix (cucumber:ok)	4m 51s
Test JavaScript / Run Jasmine	54s
Test Ruby / minitest-matrix (4, 0)	3m 21s
Test Ruby / minitest-matrix (4, 1)	2m 57s
Test Ruby / minitest-matrix (4, 2)	2m 18s
Test Ruby / minitest-matrix (4, 3)	2m 31s
Test Ruby / Run Minitest	1s
Test features / Run Cucumber	0s
	22m 7s

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