Expose `publicNetworkAccess` param in `avm/ptn/azd/container-apps-stack`

[JeffreyCA]

See Azure/bicep-registry-modules#6164

We should probably add a missing CHANGELOG.md entry for v0.2.0 mentioning this breaking change

Description

In the current 0.2.0 version, public network access is disabled by default on the CA environment and there's no way to enable it.

The previous 0.1.1 version have it enabled by default, so this is clearly a regression as it prevents all contains apps to be publicly accessible.

The publicNetworkAccess parameter should be surfaced up in this module to allow restoring public access when you need the containers to be publicly accessible.

[JeffreyCA]

Hi @v-xuto / @Menghua1, can you or your team take a look at this?

[Menghua1]

@JeffreyCA We have opened a PR Azure/bicep-registry-modules#6169 to fix this issue. Could you please help review them? Thank you!