[Bridge][Monolog] fix monolog dev dependency see PR #6832

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

This patch fix the composer monolog dependency. Actual it installs the trunk which has a change that need a patch for symfony see PR #6832.

This PR change the monolog dependency to `1.3.*`.