refactor: return generic `Provider` type for providers (#1045) #1050

Job	Run time
Build / Build libraries	35s
Build / TypeScript compilation	19s
Lint / Commit messages	18s
Lint / Code	15s
Lint / GitHub Actions	5s
Style / Format check	19s
Test / Unit tests (libs)	33s
Test / Unit tests (schematics)	25s
API Extractor / API Extractor	18s
Example apps / Load CI/CD configuration	3s
Example apps / Example app - Angular v15 - Coverage enabled	1m 24s
Example apps / Example app - Angular v15 - Coverage disabled	1m 18s
Example apps / Example app - Angular v16 - Coverage enabled	1m 32s
Example apps / Example app - Angular v16 - Coverage disabled	1m 17s
Example apps / Example app - Angular v17 - Coverage enabled	47s
Example apps / Example app - Angular v17 - Coverage disabled	43s
Example apps / Example app - Angular v18 - Coverage enabled	48s
Example apps / Example app - Angular v18 - Coverage disabled	42s
Bundle size / Load CI/CD configuration	5s
E2E / Load CI/CD configuration	4s
E2E / E2E tests - Angular v15	53s
E2E / E2E tests - Angular v16	1m 29s
E2E / E2E tests - Angular v17	1m 38s
E2E / E2E tests - Angular v18	1m 13s
Bundle size / Analysis - Angular v15	18s
Bundle size / Analysis - Angular v16	18s
Bundle size / Analysis - Angular v17	18s
Bundle size / Analysis - Angular v18	12s
Bundle size / Store - Angular v15	6s
Bundle size / Store - Angular v16	3s
Bundle size / Store - Angular v17	7s
Bundle size / Store - Angular v18	3s
Docs / Docs build & deploy	57s
Coverage / Upload to Codecov	20s
Release / Semantic Release	54s
	20m 39s

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