Bruce/fix rule escape and release opensource 1.0.0-alpha.13 (#166)

## What type of PR is this?

* [ ] Feature
* [x] BUG
* [ ] Alerts
* [ ] Improvement
* [ ] Documentation
* [ ] Test and CI

## Why we need this PR?

需要解决charts/mo-ob-opensource/templates/ob-promtail-log-rules.yaml中的规则的解析问题

<img width="2017" alt="image"
src="https://github.com/matrixone-cloud/observability/assets/69068661/6dda41bc-2e23-497a-bb3b-397825b217da">

Author: EZ4BRUCE

charts/mo-ob-opensource/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: mo-ob-opensource
 description: mo-ob-opensource's Helm chart for Kubernetes
 type: application
-version: 1.0.0-alpha.12
+version: 1.0.0-alpha.13
 appVersion: 0.9.0
 dependencies:
 - condition: kube-prometheus-stack.enabled

charts/mo-ob-opensource/templates/ob-promtail-log-rules.yaml

@@ -16,8 +16,8 @@ data:
           serviceScope: "mo-ob"
           alertOwner: bruce
         annotations:
-          summary: "{{ $labels.pod }}: error sending batch on {{ $labels.node_name }}, will retry"
-          description: "{{ $labels.pod }}: error sending batch on {{ $labels.node_name }}, will retry"
+          summary: "{{ "{{" }} $labels.pod }}: error sending batch on {{ "{{" }} $labels.node_name }}, will retry"
+          description: "{{ "{{" }} $labels.pod }}: error sending batch on {{ "{{" }} $labels.node_name }}, will retry"
       - alert: PromtailErrorSendingFinal
         expr: count_over_time({app="promtail"} |= `level=error` |= `final error sending batch` [1m]) > 0
         for: 1m
@@ -27,5 +27,5 @@ data:
           serviceScope: "mo-ob"
           alertOwner: bruce
         annotations:
-          summary: "{{ $labels.pod }}: final error sending batch on {{ $labels.node_name }}"
-          description: "{{ $labels.pod }}: final error sending batch on {{ $labels.node_name }}"
+          summary: "{{ "{{" }} $labels.pod }}: final error sending batch on {{ "{{" }} $labels.node_name }}"
+          description: "{{ "{{" }} $labels.pod }}: final error sending batch on {{ "{{" }} $labels.node_name }}"