Remove alpha version notes in migration posts (#10766) #809

Job	Run time
Testing exports integrity	2m 24s
Validating dev-tests (cjs)	2m 27s
🧹 Prettier Check	2m 24s
Examples - Normal	6m 5s
Validating dev-tests (esm)	2m 39s
Linting Check / eslint	2m 32s
Watcher Unit Test on Node (windows-latest) and GraphQL v16	2m 10s
Unit Test on Node (windows-latest) and GraphQL v16	2m 44s
Unit Test on Node 24 (ubuntu-latest) and GraphQL v16	2m 39s
Watcher Unit Test on Node 20 (ubuntu-latest) and GraphQL v16	1m 55s
Unit Test on Node 22 (ubuntu-latest) and GraphQL v15	2m 44s
Watcher Unit Test on Node 20 (ubuntu-latest) and GraphQL v15	3m 12s
Unit Test on Node 22 (ubuntu-latest) and GraphQL v16	2m 36s
Unit Test on Node 24 (ubuntu-latest) and GraphQL v15	2m 42s
	39m 13s

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