Fix: update install_rmg.sh to clarify strict channel priority flag usage and remove it from environment update command

Author: ranbenayoun

devtools/install_rmg.sh

@@ -127,17 +127,17 @@ if [[ "$MODE" == "source" ]]; then
         exit 1
     fi
 
-    # Prepare flags - --strict-channel-priority only works with mamba/micromamba
+    # Prepare flags - --strict-channel-priority only works with mamba/micromamba on create
     CHANNEL_PRIORITY_FLAG=""
     if [[ "$COMMAND_PKG" != "conda" ]]; then
         CHANNEL_PRIORITY_FLAG="--strict-channel-priority"
     fi
 
     if $COMMAND_PKG env list | awk '{print $1}' | grep -qx "$ENV_NAME"; then
         echo ">>> Updating existing environment: $ENV_NAME"
-        $COMMAND_PKG env update -n "$ENV_NAME" -f environment.yml --prune $CHANNEL_PRIORITY_FLAG
+        $COMMAND_PKG env update -n "$ENV_NAME" -f environment.yml --prune
     else
-      echo ">>> Creating new environment: $ENV_NAME"
+        echo ">>> Creating new environment: $ENV_NAME"
         $COMMAND_PKG env create -n "$ENV_NAME" -f environment.yml -y $CHANNEL_PRIORITY_FLAG
     fi