fix: use password while creating extension (#36936)

## Description
Use password while creating pg_trm extension on remote postgres. 


Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags=""

### 🔍 Cypress test results
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> [!CAUTION]  
> If you modify the content in this section, you are likely to disrupt
the CI result for your PR.

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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No

deploy/docker/fs/opt/appsmith/pg-utils.sh

@@ -136,7 +136,7 @@ init_pg_db() {
       PGPASSWORD=$PG_DB_PASSWORD psql -h "$PG_DB_HOST" -p "$PG_DB_PORT" -U "$PG_DB_USER" -d "$PG_DB_NAME" -c "CREATE SCHEMA IF NOT EXISTS appsmith;"
 
       echo "Creating pg_trgm extension..."
-      psql -h "$PG_DB_HOST" -p "$PG_DB_PORT" -U "$PG_DB_USER" -d "$PG_DB_NAME" -c "CREATE EXTENSION IF NOT EXISTS pg_trgm;"
+      PGPASSWORD=$PG_DB_PASSWORD psql -h "$PG_DB_HOST" -p "$PG_DB_PORT" -U "$PG_DB_USER" -d "$PG_DB_NAME" -c "CREATE EXTENSION IF NOT EXISTS pg_trgm;"
     fi
 
     # Check if the schema creation was successful