Try setting github token differently

.github/actions/workspace/action.yml

@@ -14,7 +14,11 @@ inputs:
     required: true
   key:
     required: true
-    default: ${{github.workflow}}-${{ runner.os }}-${{ github.sha }}
+    # default: ${{ github.workflow }}-${{ runner.os }}-${{ github.sha }}
+    default: ${{ runner.os }}-${{ github.sha }}
+  token:
+    required: false
+    default: ${{ github.token }}
 
 runs:
   using: "composite"
@@ -36,6 +40,11 @@ runs:
       if: ${{ inputs.action == 'delete' }}
       shell: bash
       env:
-        GITHUB_TOKEN: ${{ github.token }}
-      run:
-        gh cache delete '${{ inputs.key }}'
+        GH_TOKEN: ${{ inputs.token }}
+      run: >-
+        # gh cache delete '${{ inputs.key }}'
+        gh api
+          --method DELETE
+          -H "Accept: application/vnd.github+json"
+          -H "X-GitHub-Api-Version: 2022-11-28"
+          "/repos/OWNER/REPO/actions/caches?key=${{ inputs.token }}"

.github/workflows/unix.yml

@@ -15,6 +15,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+permissions:
+  actions: write
+
 jobs:
   build_shared_unix:
     name: Build binaries
@@ -86,7 +89,8 @@ jobs:
     needs: ["libmamba_tests_unix"]
     runs-on: ubuntu-latest
     if: always()
-    permissions: write-all
+    permissions:
+      actions: write
     steps:
       - name: Checkout mamba repository
         uses: actions/checkout@v3
@@ -95,6 +99,7 @@ jobs:
         with:
           action: delete
           path: build/
+          token: ${{ secrets.GITHUB_TOKEN }}
 
   umamba_integration_tests_unix:
     name: Micromamba integration tests