chore(deps): consolidate all dependabot dependency updates

[justin808]

Combines all 12 open dependabot PRs into a single update:

Root (yarn.lock):

• bump serialize-javascript from 6.0.1 to 6.0.2
• bump nanoid from 3.3.6 to 3.3.11
• bump postcss from 8.4.25 to 8.5.6
• bump webpack from 5.83.1 to 5.104.1

test/dummy:

• bump js-yaml from 4.1.0 to 4.1.1
• bump node-forge from 1.3.1 to 1.3.3
• bump brace-expansion from 1.1.11 to 1.1.12
• bump webpack-dev-server from 4.13.1 to 5.2.1
• bump shakapacker from 7.2.0 to 9.5.0
• bump webpack from 5.76.3 to 5.104.1

react-builds:

• bump webpack from 5.85.0 to 5.104.1
• bump qs from 6.11.2 to 6.14.2

Consolidates PRs: #1370, #1371, #1372, #1373, #1374, #1375, #1376, #1379, #1381, #1382, #1383, #1384

https://claude.ai/code/session_01VRfTFW5v4wn4nwMyyyxLYv

Summary

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• Add/update test to cover these changes
• Update documentation
• Update CHANGELOG file