docs: unify CRON_SECRET descriptions (#2915)

Co-authored-by: laurens <laurens@users.noreply.github.com>

.env.example

@@ -34,7 +34,7 @@ DATABASE_URL='postgresql://postgres:postgres@localhost:5432/formbricks?schema=pu
 # You can use: `openssl rand -hex 32` to generate a secure one
 NEXTAUTH_SECRET=RANDOM_STRING
 
-# Cron Secret (mandatory)
+# API Secret for running cron jobs. (mandatory)
 # You can use: `openssl rand -hex 32` to generate a secure one
 CRON_SECRET=RANDOM_STRING
 

docker/docker-compose.yml

@@ -22,7 +22,7 @@ x-environment: &environment
     # You can use: $(openssl rand -hex 32) to generate one
     ENCRYPTION_KEY:
 
-    # Set the below to use it instead of API Key for the API & use as an auth for cronjobs
+    # API Secret for running cron jobs.
     # You can use: $(openssl rand -hex 32) to generate a secure one
     CRON_SECRET: