ensure CI jobs install rapidsai/sccache fork

Author: trxcllnt

.github/workflows/ci.cpu.yml

@@ -57,6 +57,8 @@ jobs:
         run: |
           set -ex;
 
+          . devcontainer-utils-post-attach-command;
+
           # Copy source folder into ~/stdexec
           cp -r "${GITHUB_WORKSPACE}"/stdexec ~/;
           chown -R coder:coder ~/stdexec;

.github/workflows/ci.gpu.yml

@@ -59,6 +59,8 @@ jobs:
         run: |
           set -ex;
 
+          . devcontainer-utils-post-attach-command;
+
           # Copy source folder into ~/stdexec
           cp -r "${GITHUB_WORKSPACE}"/stdexec ~/;
           chown -R coder:coder ~/stdexec;