Simplify GitHub Action workflows

- Removes unnecessary subdirectories in favor of
defaults
- Also attempts to resolve the `setup-go` caching
warnings.

Signed-off-by: Dale Haiducek <19750917+dhaiducek@users.noreply.github.com>

.github/workflows/go-postsubmit.yml

@@ -5,15 +5,6 @@ on:
  branches:
  - main
  - release-*
- workflow_dispatch: {}
-
-env:
- # Common versions
- GO_REQUIRED_MIN_VERSION: ''
- GOPATH: '/home/runner/work/config-policy-controller/config-policy-controller/go'
-defaults:
- run:
- working-directory: go/src/open-cluster-management.io/config-policy-controller
 
 jobs:
  verify:
@@ -22,13 +13,10 @@ jobs:
  steps:
  - name: checkout code
  uses: actions/checkout@v4
- with:
- fetch-depth: 1
- path: go/src/open-cluster-management.io/config-policy-controller
  - name: install Go
  uses: actions/setup-go@v5
  with:
- go-version-file: go/src/open-cluster-management.io/config-policy-controller/go.mod
+ go-version-file: go.mod
  - name: images
  run: make build-images
  - name: push

.github/workflows/go-release.yml

@@ -7,9 +7,7 @@ on:
 
 env:
  TAG: ${{ github.ref_name }}
-defaults:
- run:
- working-directory: go/src/open-cluster-management.io/config-policy-controller
+
 
 jobs:
  release:
@@ -18,13 +16,10 @@ jobs:
  steps:
  - name: checkout code
  uses: actions/checkout@v4
- with:
- fetch-depth: 1
- path: go/src/open-cluster-management.io/config-policy-controller
  - name: install Go
  uses: actions/setup-go@v5
  with:
- go-version-file: go/src/open-cluster-management.io/config-policy-controller/go.mod
+ go-version-file: go.mod
  - name: build images
  run: |
  make build-images

.github/workflows/kind.yml

@@ -13,7 +13,6 @@ on:
 defaults:
  run:
  shell: bash
- working-directory: config-policy-controller
 
 jobs:
  kind-tests:
@@ -33,15 +32,11 @@ jobs:
  steps:
  - name: Checkout Config Policy Controller
  uses: actions/checkout@v4
- with:
- path: config-policy-controller
- fetch-depth: 0 # Fetch all history for all tags and branches
 
  - name: Set up Go
  uses: actions/setup-go@v5
- id: go
  with:
- go-version-file: config-policy-controller/go.mod
+ go-version-file: go.mod
 
  - name: Verify modules
  run: |