Update pfcp-agent

To the same version tested with up4 contained in sdfabric-onos image:

    docker image inspect opennetworking/sdfabric-onos:master-2022-02-07 | grep org.omecproject.up4.version
        "org.omecproject.up4.version": "59857a4b0cbe7f2e0a71128929860db5a082bc0b",

    https://github.com/omec-project/up4/blob/59857a4b0cbe7f2e0a71128929860db5a082bc0b/.env.stable#L5

Change-Id: If311ede57e675654a0a66fdc98683ccd92910d0c
diff --git a/VERSION b/VERSION
index 140333f..c2320f5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.19
+1.0.20
diff --git a/pfcp-agent/Chart.yaml b/pfcp-agent/Chart.yaml
index acfc4a9..f6d8147 100644
--- a/pfcp-agent/Chart.yaml
+++ b/pfcp-agent/Chart.yaml
@@ -5,4 +5,4 @@
 apiVersion: v1
 description: PFCP Agent for SD-Fabric's P4 UPF
 name: pfcp-agent
-version: 0.0.5
+version: 0.0.6
diff --git a/pfcp-agent/values.yaml b/pfcp-agent/values.yaml
index b32736c..6c854fe 100644
--- a/pfcp-agent/values.yaml
+++ b/pfcp-agent/values.yaml
@@ -5,7 +5,7 @@
 images:
   tags:
     init: registry.aetherproject.org/tools/busybox:stable
-    pfcpiface: omecproject/upf-epc-pfcpiface:master-fcdbc95
+    pfcpiface: omecproject/upf-epc-pfcpiface:master-675c303
   pullPolicy: Always
 
 nodeSelectors:
diff --git a/sdfabric/Chart.yaml b/sdfabric/Chart.yaml
index 53b872a..3f5db99 100644
--- a/sdfabric/Chart.yaml
+++ b/sdfabric/Chart.yaml
@@ -7,7 +7,7 @@
 description: A chart to deploy all SD-Fabric components
 kubeVersion: ">=1.18.0"
 type: application
-version: 1.0.19
+version: 1.0.20
 keywords:
   - aether
   - sdn
@@ -27,7 +27,7 @@
     condition: import.stratum.enabled
   - name: pfcp-agent
     repository: file://../pfcp-agent
-    version: 0.0.5
+    version: 0.0.6
     condition: import.pfcp-agent.enabled
   - name: dbuf
     repository: file://../dbuf