build(client): add @beta support to core-interfaces"

[jason-ha]

This PR is an example of how to add @beta API support to package that currently supports @legacy APIs.

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluidframework-docs@0.25.0 ci:linkcheck /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test ci:start 1313 linkcheck:full

1: starting server using command "npm run ci:start"
and when url "[ 'http://127.0.0.1:1313' ]" is responding with HTTP status code 200
running tests using command "npm run linkcheck:full"


> fluidframework-docs@0.25.0 ci:start
> http-server ./public --port 1313 --silent


> fluidframework-docs@0.25.0 linkcheck:full
> npm run linkcheck:fast -- --external


> fluidframework-docs@0.25.0 linkcheck:fast
> linkcheck http://localhost:1313 --skip-file skipped-urls.txt --external

Crawling...

Stats:
  377871 links
    2980 destination URLs
       2 URLs ignored
       0 warnings
       0 errors

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +245 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	457.72 KB	457.76 KB	⯅ +35 Bytes
azureClient.js	555.04 KB	555.09 KB	⯅ +49 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	258.54 KB	258.55 KB	⯅ +14 Bytes
fluidFramework.js	406.45 KB	406.46 KB	⯅ +14 Bytes
loader.js	134.1 KB	134.11 KB	⯅ +14 Bytes
map.js	42.13 KB	42.14 KB	⯅ +7 Bytes
matrix.js	146.3 KB	146.31 KB	⯅ +7 Bytes
odspClient.js	523.18 KB	523.23 KB	⯅ +49 Bytes
odspDriver.js	97.55 KB	97.57 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.61 KB	42.62 KB	⯅ +14 Bytes
sharedString.js	163 KB	163.01 KB	⯅ +7 Bytes
sharedTree.js	396.96 KB	396.97 KB	⯅ +7 Bytes
Total Size	3.3 MB	3.3 MB	⯅ +245 Bytes

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Baseline commit: e9d1a83

Generated by 🚫 dangerJS against d8e8a1f