minor symfony#18918 Use Doctor RST 1.51.0 (alamirault)

This PR was submitted for the 6.4 branch but it was merged into the 5.4 branch instead.

Discussion
----------

Use Doctor RST 1.51.0

With rule to [ensure php reference syntax](OskarStark/doctor-rst#1519
)

Commits
-------

f316bdc Use Doctor RST 1.51.0

Author: javiereguiluz

.doctor-rst.yaml

@@ -16,6 +16,7 @@ rules:
     ensure_exactly_one_space_between_link_definition_and_link: ~
     ensure_link_definition_contains_valid_url: ~
     ensure_order_of_code_blocks_in_configuration_block: ~
+    ensure_php_reference_syntax: ~
     extend_abstract_controller: ~
     extension_xlf_instead_of_xliff: ~
     forbidden_directives:
@@ -94,7 +95,6 @@ whitelist:
         - 'The bin/console Command'
         - '.. _`LDAP injection`: http://projects.webappsec.org/w/page/13246947/LDAP%20Injection'
         - '.. versionadded:: 1.9.0' # Encore
-        - '.. versionadded:: 1.11' # Messenger (Middleware / DoctrineBundle)
         - '.. versionadded:: 1.18' # Flex in setup/upgrade_minor.rst
         - '.. versionadded:: 1.0.0' # Encore
         - '.. versionadded:: 5.1' # Private Services

.github/workflows/ci.yaml

@@ -73,7 +73,7 @@ jobs:
                     key: ${{ runner.os }}-doctor-rst-${{ steps.extract_base_branch.outputs.branch }}
 
             -   name: "Run DOCtor-RST"
-                uses: docker://oskarstark/doctor-rst:1.49.0
+                uses: docker://oskarstark/doctor-rst:1.51.0
                 with:
                     args: --short --error-format=github --cache-file=/github/workspace/.cache/doctor-rst.cache
 

http_client.rst

@@ -1358,7 +1358,7 @@ installed in your application::
     // this won't hit the network if the resource is already in the cache
     $response = $client->request('GET', 'https://example.com/cacheable-resource');
 
-:class:`Symfony\\Component\\HttpClient\\CachingHttpClient`` accepts a third argument
+:class:`Symfony\\Component\\HttpClient\\CachingHttpClient` accepts a third argument
 to set the options of the :class:`Symfony\\Component\\HttpKernel\\HttpCache\\HttpCache`.
 
 Consuming Server-Sent Events

validation/custom_constraint.rst

@@ -622,7 +622,7 @@ A class constraint validator must be applied to the class itself:
 Testing Custom Constraints
 --------------------------
 
-Use the :class:`Symfony\\Component\\Validator\\Test\\ConstraintValidatorTestCase``
+Use the :class:`Symfony\\Component\\Validator\\Test\\ConstraintValidatorTestCase`
 class to simplify writing unit tests for your custom constraints::
 
     // tests/Validator/ContainsAlphanumericValidatorTest.php