Explicitly declare allowPrivilegeEscalation to false

Although containers that do not run as privileged already have this set to false by kubernetes
Kubespace [asks us](https://hub.armo.cloud/docs/c-0016) to explicitly declare it to false where not needed.

Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>

manifests/nodeExporter-daemonset.yaml

@@ -43,6 +43,8 @@ spec:
           requests:
             cpu: 102m
             memory: 180Mi
+        securityContext:
+          allowPrivilegeEscalation: false
         volumeMounts:
         - mountPath: /host/sys
           mountPropagation: HostToContainer
@@ -76,6 +78,7 @@ spec:
             cpu: 10m
             memory: 20Mi
         securityContext:
+          allowPrivilegeEscalation: false
           runAsGroup: 65532
           runAsNonRoot: true
           runAsUser: 65532