Use github arm64 runners (#7173)

Now that the arm64 runners are re-created with the ubuntu 22.04 image,
docker and other tools are available.

See #7053 and #7171

fixes #7026

Signed-off-by: Sean Young <sean@mess.org>
Co-authored-by: Simon Dudley <simon.dudley@consensys.net>

.github/workflows/develop.yml

@@ -36,7 +36,7 @@ jobs:
       matrix:
         platform:
           - ubuntu-22.04
-          - [self-hosted, ARM64]
+          - besu-arm64
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Prepare

.github/workflows/release.yml

@@ -151,7 +151,7 @@ jobs:
       matrix:
         platform:
           - ubuntu-22.04
-          - [self-hosted, ARM64]
+          - besu-arm64
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Prepare