Revert test to security_content develop branch.

Bump version of contentctl to v4.5.0 in prep
for release.

Author: pyth0n1c

.github/workflows/test_against_escu.yml

@@ -36,7 +36,6 @@ jobs:
         with: 
           path: security_content
           repository: splunk/security_content
-          ref: strict_yml_fields #quick test against updated content
 
       #Install the given version of Python we will test against
       - name: Install Required Python Version

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "contentctl"
-version = "4.4.6"
+version = "4.5.0"
 
 description = "Splunk Content Control Tool"
 authors = ["STRT <[email protected]>"]