chore: remove CJS/UMD builds #20451

Job	Run time
Lint Package	1m 10s
Setup	13s
Bundle Qwik	7s
Build Qwik	0s
Build optimizer ${{ matrix.settings.target }}	0s
Build Other Packages	9s
E2E CLI Tests (ubuntu-latest, chromium)	2m 7s
E2E Tests (ubuntu-latest, chromium)	4m 41s
E2E CLI Tests (macos-latest, webkit)	2m 4s
Build Docs	0s
E2E CLI Tests (windows-latest, chromium)	6m 13s
E2E Tests (windows-latest, chromium)	9m 27s
E2E Tests (macos-latest, webkit)	5m 56s
Unit Tests	0s
Build Insights	0s
All requirements are met	3s
Release	-1s
Trigger Qwik Router E2E	0s
	32m 9s

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