Revert shellcheck job version, always fetch configlet, but only once

Author: dem4ron

.github/workflows/tests.yml

@@ -87,7 +87,7 @@ jobs:
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
 
       - name: Run shellcheck
-        uses: ludeeus/action-shellcheck@master
+        uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38 # v2.0.0
         env: 
           SHELLCHECK_OPTS: -x -s bash -e SC2001 --norc
 

bin/add_practice_exercise

@@ -37,14 +37,9 @@ command -v curl >/dev/null 2>&1 || {
     exit 1
 }
 
-# Check if configlet is already fetched
-if [ -e bin/configlet ]; then
-    message "success" "Configlet found!"
-else
-    message "info" "Fetching configlet"
-    bin/fetch-configlet
-    message "success" "Fetched configlet successfully!"
-fi
+# Build configlet
+bin/fetch-configlet
+message "success" "Fetched configlet successfully!"
 
 # Check if exercise exists in configlet info or in config.json
 check_exercise_existence "$1"
@@ -80,9 +75,6 @@ create_rust_files "$exercise_dir" "$slug" "$has_canonical_data"
 
 # ==================================================
 
-# Build configlet
-./bin/fetch-configlet
-message "success" "Fetched configlet successfully!"
 
 # Preparing config.json
 message "info" "Adding instructions and configuration files..."