Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 60be4e21f1ada02fbbdb39cc47ff1c69c098a00a
  - Fix Sonar issue

    Major SmellCode:
    Replace StringBuffer with StringBuilder

    Change-Id: I0283e5160e5c1f23423c66110015f18c8163411e
    Signed-off-by: Vasyl Razinkov <vasyl.razinkov@est.tech>
    Issue-ID: SDC-2670

diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index fe540e1..60be4e2 160000 (submodule)
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit fe540e1d6e3f0155741a4b4bc48f5ec56f114852
+Subproject commit 60be4e21f1ada02fbbdb39cc47ff1c69c098a00a