Upgrade pnpm to fix pnpm config in CI

[CobyPear]

What changes were made?

• Upgrade pnpm to 7.26.3 in all relevant docs and configs including CI

Where were the changes made?

How have the changes been tested?

build, test and ran all packages and starters

Additional information

Some relevant issues here:
pnpm/pnpm#5621
pnpm/pnpm#5829

Don't forget to add a changeset if needed!

[changeset-bot]

⚠️ No Changeset found

Latest commit: 843c6be

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[guardrails]

⚠️ We detected 13 security issues in this pull request:

Vulnerable Libraries (13)

Severity	Details
Medium	pkg:npm/serve-handler@6.1.5@6.1.5 (t) - no patch available
Critical	pkg:npm/socket.io@3.1.2@3.1.2 (t) - no patch available
High	pkg:npm/loader-utils@3.2.1@3.2.1 (t) - no patch available
Medium	pkg:npm/react@18.2.0@18.2.0 (t) - no patch available
Medium	pkg:npm/react@17.0.2@17.0.2 (t) - no patch available
High	pkg:npm/prismjs@1.29.0@1.29.0 (t) - no patch available
High	pkg:npm/trim@1.0.1@1.0.1 (t) - no patch available
Critical	pkg:npm/socket.io-parser@4.0.5@4.0.5 (t) - no patch available
High	pkg:npm/shelljs@0.8.5@0.8.5 (t) - no patch available
High	pkg:npm/loader-utils@2.0.4@2.0.4 (t) - no patch available
Critical	pkg:npm/uglify-js@3.17.4@3.17.4 (t) - no patch available
Low	pkg:npm/node-fetch@2.6.9@2.6.9 (t) - no patch available
Medium	pkg:npm/ua-parser-js@0.7.32@0.7.32 (t) - no patch available

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