Update version of PyYAML

Change-Id: I9672c4cfc5e1aa3abcb67ee328fab299068c141c
Signed-off-by: Mark Beierl <mark.beierl@canonical.com>
(cherry picked from commit 79276b21b9c1b57a16cb3d000ae2c1dc055d3f46)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index c35cd6e..9883a58 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -65,7 +65,7 @@
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=v14.0
     #   motor
-pyyaml==5.4.1
+pyyaml==6.0.1
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v14.0
     #   -r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=v14.0
diff --git a/requirements.in b/requirements.in
index 3cb40db..9096b53 100644
--- a/requirements.in
+++ b/requirements.in
@@ -16,6 +16,6 @@
 deepdiff
 jsonschema>=3.2.0
 python-keystoneclient
-pyyaml==5.4.1
+pyyaml>6
 requests
 tacacs_plus
diff --git a/requirements.txt b/requirements.txt
index 7de03f8..caa587d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -136,7 +136,7 @@
     #   oslo-serialization
     #   oslo-utils
     #   tempora
-pyyaml==5.4.1
+pyyaml==6.0.1
     # via
     #   -r requirements.in
     #   oslo-config