Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7e2f7db5b4007fe470a7ce5794c88d1844021410
  - Merge "Update ETSI Catalog Swagger file. Change filters to filter for PkgmSubscriptionRequest object"
  - Update ETSI Catalog Swagger file. Change filters to filter for PkgmSubscriptionRequest object

    Change-Id: Ie8c6a2939936c49dcbe7e989b273e37cde4e23d1
    Issue-ID: SO-2722
    Signed-off-by: rope252 <gareth.roper@est.tech>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 3cfae67..7e2f7db 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 3cfae67b1627fad4845bc09f6174798f4a9ddf1f
+Subproject commit 7e2f7db5b4007fe470a7ce5794c88d1844021410