Downgrade LDAP plugin to 1.1.0 (#156)

- there's an issue with 1.2.1 in which the LDAP plugin attempts to login
as a different user to the one specified on the login screen (the user
LDAP attempts to login with is always the same, regardless of the user
logging in). Downgrading to 1.1.0 seems to resolve this issue

roles/xnat/defaults/main.yml

@@ -40,7 +40,7 @@ xnat_ldap_keystore_alias: ""
 # Plugins
 xnat_plugin_urls:
   - https://api.bitbucket.org/2.0/repositories/xnatdev/xsync/downloads/xsync-plugin-all-1.8.1.jar
-  - https://api.bitbucket.org/2.0/repositories/xnatx/ldap-auth-plugin/downloads/ldap-auth-plugin-1.2.1.jar
+  - https://api.bitbucket.org/2.0/repositories/xnatx/ldap-auth-plugin/downloads/ldap-auth-plugin-1.1.0.jar
   - https://api.bitbucket.org/2.0/repositories/xnatdev/container-service/downloads/container-service-3.6.2-fat.jar
   - https://api.bitbucket.org/2.0/repositories/xnatx/xnatx-batch-launch-plugin/downloads/batch-launch-0.7.0.jar
   - https://github.com/VUIIS/dax/raw/main/misc/xnat-plugins/dax-plugin-genProcData-1.4.2.jar