Remove references to dockerhub from GHA

Author: gtopper

.github/workflows/pr.yaml

@@ -38,9 +38,6 @@ jobs:
     if: ${{ contains( github.event.pull_request.labels.*.name, 'safe-to-test') }}
     container:
       image: golang:1.24-alpine
-      credentials:
-        username: ${{ secrets.DOCKER_HUB_USERNAME }}
-        password: ${{ secrets.DOCKER_HUB_TOKEN }}
 
     steps:
       - name: Dump github context
@@ -79,9 +76,6 @@ jobs:
     if: ${{ contains( github.event.pull_request.labels.*.name, 'safe-to-test') }}
     container:
       image: python:3.11.11
-      credentials:
-        username: ${{ secrets.DOCKER_HUB_USERNAME }}
-        password: ${{ secrets.DOCKER_HUB_TOKEN }}
 
     steps:
       - name: Dump github context

.github/workflows/release.yaml

@@ -28,9 +28,6 @@ jobs:
     runs-on: [ self-hosted, Linux ]
     container:
       image: golang:1.24-alpine
-      credentials:
-        username: ${{ secrets.DOCKER_HUB_USERNAME }}
-        password: ${{ secrets.DOCKER_HUB_TOKEN }}
 
     steps:
       - name: Dump github context
@@ -67,9 +64,6 @@ jobs:
     runs-on: [ self-hosted, Linux ]
     container:
       image: python:3.11.11
-      credentials:
-        username: ${{ secrets.DOCKER_HUB_USERNAME }}
-        password: ${{ secrets.DOCKER_HUB_TOKEN }}
 
     env:
       V3IO_API: ${{ secrets.V3IO_API }}