New rules for an anonymous LDAP bind

[ericwb]

Is your feature request related to a problem? Please describe.
In LDAP, anonymous bind is equivalent to no authentication at all. This is insecure as anyone can access the LDAP data without login.

Describe the solution you'd like
New rules for each language to check for LDAP bind that is anonymous.

Describe alternatives you've considered
n/a

Additional context

• https://docs.oracle.com/en/java/javase/21/docs/api/java.naming/javax/naming/directory/InitialDirContext.html
• https://ldap3.readthedocs.io/en/latest/connection.html

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[ericwb]

Python version is merged as rule PY527