chore: rename getBindingsProxy to getPlatformProxy

[dario-piotrowicz]

What this PR solves / how to test:

initially getBindingsProxy was supposed to only provide proxies for bindings,
the utility has however grown, including now cf, ctx and caches, to
clarify the increased scope the utility is getting renamed to getPlatformProxy
and its bindings field is getting renamed env

note: getBindingProxy with its signature is still kept available, making this
a non breaking change

Author has addressed the following:

• Tests
  • Included
  • Not necessary because:
• Changeset (Changeset guidelines)
  • Included
  • Not necessary because:
• Associated docs
  • Issue(s)/PR(s): update getBindingsProxy documentation to getPlatformProxy cloudflare-docs#12957
  • Not necessary because:

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[changeset-bot]

🦋 Changeset detected

Latest commit: 110dc12

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
wrangler	Patch

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[github-actions]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-wrangler-5002

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/5002/npm-package-wrangler-5002

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-wrangler-5002 dev path/to/script.js

Additional artifacts:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-create-cloudflare-5002 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-cloudflare-kv-asset-handler-5002

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-miniflare-5002

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/7885438473/npm-package-cloudflare-pages-shared-5002

Note that these links will no longer work once the GitHub Actions artifact expires.

---

wrangler@3.28.1 includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20240129.1
workerd	1.20240129.0	1.20240129.0
workerd --version	1.20240129.0	2024-01-29

Please ensure constraints are pinned, and miniflare/workerd minor versions match.

[codecov]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (7ad8ddd) 70.45% compared to head (110dc12) 70.44%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5002      +/-   ##
==========================================
- Coverage   70.45%   70.44%   -0.02%     
==========================================
  Files         295      297       +2     
  Lines       15411    15419       +8     
  Branches     3948     3949       +1     
==========================================
+ Hits        10858    10862       +4     
- Misses       4553     4557       +4     

Files	Coverage Δ
.../wrangler/src/api/integrations/deprecated/index.ts	100.00% <100.00%> (ø)
packages/wrangler/src/api/integrations/index.ts	100.00% <100.00%> (ø)
...s/wrangler/src/api/integrations/platform/caches.ts	8.33% <ø> (ø)
.../src/api/integrations/platform/executionContext.ts	33.33% <ø> (ø)
...wrangler/src/api/integrations/platform/services.ts	7.50% <ø> (ø)
...es/wrangler/src/api/integrations/platform/index.ts	20.45% <0.00%> (ø)
...rc/api/integrations/deprecated/getBindingsProxy.ts	16.66% <16.66%> (ø)

... and 4 files with indirect coverage changes

[petebacondarwin]

Nice! And a docs PR too!
Can you create a PR to remove the deprecated API in Wrangler 4.0.0 and add it to the v4 milestone?