Adding support for PowerShell 7.4

[Chambras]

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Description

Adding support for PowerShell 7.4 for both Linux and Windows Functions App.
Updated documentation with new version support.

PR Checklist

• I have followed the guidelines in our Contributing Documentation.
• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have checked if my changes close any open issues. If so please include appropriate closing keywords below.
• I have updated/added Documentation as required written in a helpful and kind way to assist users that may be unfamiliar with the resource / data source.
• I have used a meaningful PR title to help maintainers and other users understand this change and help prevent duplicate work.
  For example: “resource_name_here - description of change e.g. adding property new_property_name_here”

Changes to existing Resource / Data Source

• I have added an explanation of what my changes do and why I'd like you to include them (This may be covered by linking to an issue above, but may benefit from additional explanation).
• I have written new tests for my resource or datasource changes & updated any relevent documentation.
• I have successfully run tests with my changes locally. If not, please provide details on testing challenges that prevented you running the tests.
• (For changes that include a state migration only). I have manually tested the migration path between relevant versions of the provider.

Testing

• My submission includes Test coverage as described in the Contribution Guide and the tests pass. (if this is not possible for any reason, please include details of why you did or could not add test coverage)

Windows test log:

$ make acctests SERVICE='appservice' TESTARGS=' -run=TestAccWindowsFunctionApp_appStackPowerShellCore74' TESTTIMEOUT='60m'
==> Checking that code complies with gofmt requirements...
==> Checking that Custom Timeouts are used...
==> Checking that acceptance test packages are used...
TF_ACC=1 go test -v ./internal/services/appservice -run=TestAccWindowsFunctionApp_appStackPowerShellCore74 -timeout 60m -ldflags="-X=github.com/hashicorp/terraform-provider-azurerm/version.ProviderVersion=acc"
=== RUN   TestAccWindowsFunctionApp_appStackPowerShellCore74
=== PAUSE TestAccWindowsFunctionApp_appStackPowerShellCore74
=== CONT  TestAccWindowsFunctionApp_appStackPowerShellCore74
--- PASS: TestAccWindowsFunctionApp_appStackPowerShellCore74 (150.72s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/appservice    (cached)

Linux test log:

$ make acctests SERVICE='appservice' TESTARGS=' -run=TestAccLinuxFunctionApp_appStackPowerShellCore74' TESTTIMEOUT='60m'
==> Checking that code complies with gofmt requirements...
==> Checking that Custom Timeouts are used...
==> Checking that acceptance test packages are used...
TF_ACC=1 go test -v ./internal/services/appservice -run=TestAccLinuxFunctionApp_appStackPowerShellCore74 -timeout 60m -ldflags="-X=github.com/hashicorp/terraform-provider-azurerm/version.ProviderVersion=acc"
=== RUN   TestAccLinuxFunctionApp_appStackPowerShellCore74
=== PAUSE TestAccLinuxFunctionApp_appStackPowerShellCore74
=== CONT  TestAccLinuxFunctionApp_appStackPowerShellCore74
--- PASS: TestAccLinuxFunctionApp_appStackPowerShellCore74 (159.06s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/appservice    (cached)

Change Log

Below please provide what should go into the changelog (if anything) conforming to the Changelog Format documented here.

• azurerm_windows_function_app - support for the PowerShell 7.4
• azurerm_linux_function_app - support for the PowerShell 7.4

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Related Issue(s)

Fixes #25924

Note

If this PR changes meaningfully during the course of review please update the title and description as required.

[favoretti]

[katbyte]

LGTM 🏖️

[github-actions]

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