Update version of PyYAML

Change-Id: Ibe3a0203e90e90cdbb54808abc8e46832702f498
Signed-off-by: Mark Beierl <mark.beierl@canonical.com>
(cherry picked from commit 32f92ce2d3df9e66686cebe499a51c0964c23acb)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index cc3fb47..d8055f3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -67,8 +67,8 @@
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=v14.0
     #   requests
-juju==3.0.0
-    # via -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=v14.0
+juju==2.9.44.0
+    # via -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
 jujubundlelib==0.5.7
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=v14.0
@@ -154,7 +154,7 @@
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=v14.0
     #   pyrfc3339
-pyyaml==5.4.1
+pyyaml==6.0.1
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/N2VC.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