Use placeholder for secret_key_base in test environment

Author: constantine-nikolaou

config/secrets.yml

@@ -21,7 +21,7 @@ development:
   secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
 
 test:
-  secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
+  secret_key_base: '9489b3eee4eccf317ed77407553e8adc97baca7c74dc7ee33cd93e4c8b69477eea66eaedeb18af0be2679887c7c69c0a28c0fded0a71ea472a8c4laalal19cb'
 
 # Do not keep production secrets in the unencrypted secrets file.
 # Instead, either read values from the environment.