[c3] fix c3 js scheduled template to have correct main file reference.

[admah]

Fixes # [insert GH or internal issue number(s)].

#3913

What this PR solves / how to test:

Create a Scheduled Worker via C3, selecting NO to TypeScript. The main entry in wrangler.toml should be index.js, and the project should be able to be deployed.

Associated docs issue(s)/PR(s):

• [insert associated docs issue(s)/PR(s)]

Author has included the following, where applicable:

• Tests
• Changeset (Changeset guidelines)

Reviewer is to perform the following, as applicable:

• Checked for inclusion of relevant tests
• Checked for inclusion of a relevant changeset
• Checked for creation of associated docs updates
• Manually pulled down the changes and spot-tested

Note for PR author:

We want to celebrate and highlight awesome PR review! If you think this PR received a particularly high-caliber review, please assign it the label highlight pr review so future reviewers can take inspiration and learn from it.

[changeset-bot]

🦋 Changeset detected

Latest commit: 3699e55

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

This PR includes changesets to release 1 package

Name	Type
create-cloudflare	Patch

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

[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/6126639499/npm-package-wrangler-3916

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

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/6126639499/npm-package-wrangler-3916

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/6126639499/npm-package-wrangler-3916 dev path/to/script.js

Additional artifacts:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/6126639499/npm-package-cloudflare-pages-shared-3916

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

---

[email protected] includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	3.20230904.0	3.20230904.0
workerd	1.20230904.0	1.20230904.0
workerd --version	1.20230904.0	2023-09-04

|

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

[codecov]

Codecov Report

Merging #3916 (3699e55) into main (a986f19) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3916      +/-   ##
==========================================
+ Coverage   75.10%   75.12%   +0.02%     
==========================================
  Files         195      195              
  Lines       11487    11487              
  Branches     3036     3036              
==========================================
+ Hits         8627     8630       +3     
+ Misses       2860     2857       -3     

see 2 files with indirect coverage changes

[IgorMinar]

LGTM

[jculvey]

@admah good to merge?

[admah]

@jculvey yes! Lost this one in the mix somewhere. Thanks!