fix: add /tmp volume and volume mount to tools container to facilitate writes when readOnlyRootFileSystem is set to true (#61)

Signed-off-by: JM Huibonhoa <jm.huibonhoa@solo.io>

Author: jmhbh

helm/kagent-tools/templates/deployment.yaml

@@ -111,4 +111,9 @@ spec:
               port: http-tools
             initialDelaySeconds: 15
             periodSeconds: 15
-
+          volumeMounts:
+            - name: tmp
+              mountPath: /tmp
+      volumes:
+        - name: tmp
+          emptyDir: {}