Release final newton versions for ironic services

bifrost 2.1.0
ironic-inspector 4.2.0
ironic-python-agent 1.5.0
ironic 6.2.0

Change-Id: I85c67e643719736fe3bacc4b8774c6d10e3edd8f

deliverables/newton/bifrost.yaml

@@ -8,3 +8,7 @@ releases:
     projects:
       - repo: openstack/bifrost
         hash: 33afbb5aae3df3957755b3a589b221a4e680f8d9
+  - version: 2.1.0
+    projects:
+      - repo: openstack/bifrost
+        hash: ba9d981e4dd1a76636a3643d26cbab9e6b87cf71

deliverables/newton/ironic-inspector.yaml

@@ -16,3 +16,7 @@ releases:
     projects:
       - repo: openstack/ironic-inspector
         hash: 625add4f416e8916874d95698d5d411000895a07
+  - version: 4.2.0
+    projects:
+      - repo: openstack/ironic-inspector
+        hash: f33658a2b4aee7e9049aca4bc4fba26e6d60848a

deliverables/newton/ironic-python-agent.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/ironic-python-agent
         hash: 185780822f38603aec93653a75f7161bfc8b2931
+  - version: 1.5.0
+    projects:
+      - repo: openstack/ironic-python-agent
+        hash: 6f98e534f52336cf04fc648987edb15e43e3f9f5

deliverables/newton/ironic.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/ironic
         hash: ba1e15e3a9810e32f06b747f7d9426c495f4775a
+  - version: 6.2.0
+    projects:
+      - repo: openstack/ironic
+        hash: 1c339b6806580719d20b303d4506c754b9c59e96