GHActions:Linux: Make ccache config global

New testing step was missing the config

.github/workflows/linux-workflow.yml

@@ -104,6 +104,13 @@ jobs:
     # Set some sort of timeout in the event of run-away builds.  We are limited on concurrent jobs so, get rid of them.
     timeout-minutes: 30
 
+    env:
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_COMPRESS: true
+      CCACHE_COMPRESSLEVEL: 9
+      CCACHE_MAXSIZE: 100M
+
     steps:
       # NOTE - useful for debugging
       # - name: Dump GitHub context

.github/workflows/scripts/linux/compile.sh

@@ -6,12 +6,6 @@ if [ -n "${GITHUB_ACTIONS}" ]; then
     echo "Warning: Running this script outside of GitHub Actions isn't recommended."
 fi
 
-export CCACHE_BASEDIR=${GITHUB_WORKSPACE}
-export CCACHE_DIR=${GITHUB_WORKSPACE}/.ccache
-export CCACHE_COMPRESS="true"
-export CCACHE_COMPRESSLEVEL="6"
-export CCACHE_MAXSIZE="400M"
-
 # Prepare the Cache
 ccache -p
 ccache -z