ci: do not use cache for west

get a fresh copy.

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

.github/workflows/twister.yaml

@@ -80,7 +80,7 @@ jobs:
           west init -l . || true
           west config manifest.group-filter -- +ci,+external
           west config --global update.narrow true
-          west update --path-cache /repo-cache/zephyrproject 2>&1 1> west.update.log || west update --path-cache /repo-cache/zephyrproject 2>&1 1> west.update.log || ( rm -rf ../modules ../bootloader ../tools && west update --path-cache /repo-cache/zephyrproject)
+          west update 2>&1 1> west.update.log || west update 2>&1 1> west.update.log || ( rm -rf ../modules ../bootloader ../tools && west update)
           west forall -c 'git reset --hard HEAD'
 
           echo "ZEPHYR_SDK_INSTALL_DIR=/opt/toolchains/zephyr-sdk-$( cat SDK_VERSION )" >> $GITHUB_ENV