docs: Update path param aws_cloudfront_function in example

[tony]

Description

File: example/complete/main.tf
Module: aws_cloudfront_function
Terraform version: 1.6.0

╷
│ Error: Invalid function argument
│
│   on .../main.tf line 340, in resource "aws_cloudfront_function" "example":
│  340:   code    = file("example-function.js")
│     ├────────────────
│     │ while calling file(path)
│
│ Invalid value for "path" parameter: no file exists at "example-function.js"; this function works only with files
│ that are distributed as part of the configuration source code, so if this file will be created by a resource in
│ this configuration you must instead obtain this result from an attribute of that resource.
╵

Motivation and Context

Using example/complete/main.tf of terraform-aws-cloudfront on Terraform 1.6.0

Example from aws_cloudfront_function docs @ 5.20.0 using ${path.module}:

resource "aws_cloudfront_function" "test" {
  name    = "test"
  runtime = "cloudfront-js-1.0"
  comment = "my function"
  publish = true
  code    = file("${path.module}/function.js")
}

Screenshot

via docs

See also: StackOverflow Answer for "Invalid value for "path" parameter: no file exists at"

Breaking Changes

None

How Has This Been Tested?

• I have updated at least one of the examples/* to demonstrate and validate my change(s)
• I have tested and validated these changes using one or more of the provided examples/* projects

• I have executed pre-commit run -a on my pull request

[bryantbiggs]

this shouldn't be required for the example since its run in place, but seems ok to add - thank you

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues. If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.

[antonbabenko]

This PR is included in version 3.2.2 🎉