minor symfony#13276 add missing "secrets" key (xabbuh)

This PR was merged into the 4.4 branch.

Discussion
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add missing "secrets" key

fixes symfony#12996

Commits
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929fac7 add missing "secrets" key

Author: javiereguiluz

configuration/secrets.rst

@@ -115,7 +115,7 @@ If you stored a ``DATABASE_PASSWORD`` secret, you can reference by:
         # config/packages/doctrine.yaml
         doctrine:
             dbal:
-                password: '%env(DATABASE_PASSWORD)%'
+                password: '%env(secret:DATABASE_PASSWORD)%'
                 # ...
             # ...