Run acceptance tests on all branch targets (#785)

I found it surprising when trying to [stack](https://stacking.dev) some
PRs that we don't run tests unless the PR is explicitly against master.
This is
[awkward](pulumi/pulumi-docker#948 (comment))
to work with.

This PR changes our workflow to trigger for PRs against any branch. I
might be missing some context around #723 and why we chose to opt-in
only some patterns, but if there are automated flows that shouldn't run
tests I recommend we opt those out explicitly.

provider-ci/internal/pkg/templates/bridged-provider/.github/workflows/run-acceptance-tests.yml

@@ -339,10 +339,6 @@ jobs:
 name: run-acceptance-tests
 on:
   pull_request:
-    branches:
-    - #{{ .Config.providerDefaultBranch }}#
-    - v*
-    - feature*
     paths-ignore:
     - CHANGELOG.md
   repository_dispatch:

provider-ci/test-workflows/aws/.github/workflows/run-acceptance-tests.yml

@@ -439,10 +439,6 @@ jobs:
 name: run-acceptance-tests
 on:
   pull_request:
-    branches:
-    - master
-    - v*
-    - feature*
     paths-ignore:
     - CHANGELOG.md
   repository_dispatch:

provider-ci/test-workflows/cloudflare/.github/workflows/run-acceptance-tests.yml

@@ -396,10 +396,6 @@ jobs:
 name: run-acceptance-tests
 on:
   pull_request:
-    branches:
-    - master
-    - v*
-    - feature*
     paths-ignore:
     - CHANGELOG.md
   repository_dispatch:

provider-ci/test-workflows/docker/.github/workflows/run-acceptance-tests.yml

@@ -436,10 +436,6 @@ jobs:
 name: run-acceptance-tests
 on:
   pull_request:
-    branches:
-    - master
-    - v*
-    - feature*
     paths-ignore:
     - CHANGELOG.md
   repository_dispatch: