Update git submodules

* Update docs/submodules/policy/apex-pdp.git from branch 'master'
  to 50f6a666c5072c94fd5741415096ebe5ffe453dc
  - Merge "Fix checkstyle problems on sonar fix"
  - Fix checkstyle problems on sonar fix

    A sonar fix brought in some minor checkstyle issues. This
    review fixes those.

    Issue-ID: POLICY-1535
    Change-Id: I4f9d66ffc0a4fcc8901d7e18bfb21a1d1cf135b7
    Signed-off-by: liamfallon <liam.fallon@est.tech>

diff --git a/docs/submodules/policy/apex-pdp.git b/docs/submodules/policy/apex-pdp.git
index 605003e..50f6a66 160000 (submodule)
--- a/docs/submodules/policy/apex-pdp.git
+++ b/docs/submodules/policy/apex-pdp.git
@@ -1 +1 @@
-Subproject commit 605003e9938f38ca7dfdda3d637daf2e9ccc67e2
+Subproject commit 50f6a666c5072c94fd5741415096ebe5ffe453dc