Templating error for canary failures

[moshloop]

---
error:
  context:
    template: "<p>{{ if eq channel &ldquo;slack&rdquo;}}\n{</p>\n\n<pre><code>&quot;blocks&quot;:
      [\n\t{{slackSectionTextMD (printf `:red_circle: *%s* is _unhealthy_` .check.name)}},\n{&quot;type&quot;:
      &quot;divider&quot;},\n\t{{ if .status.error}}{{slackSectionTextMD status.error}},{{end}}\n\t{\n\t\t&quot;type&quot;:
      &quot;section&quot;,\n\t\t&quot;fields&quot;: [\n\t\t\t{{slackSectionTextFieldMD
      (printf `*Canary*: %s` .canary.name) }},\n\t\t\t{{slackSectionTextFieldMD (printf
      `*Namespace*: %s` .canary.namespace) }}\n\t\t\t{{if ne .agent.name &quot;local&quot;}}\n\t\t\t\t,{{slackSectionTextFieldMD
      (printf `*Agent*: %s` .agent.name) }}\n\t\t\t{{end}}\n\t\t]\n\t},\n\t{{ if .check.labels}}{{slackSectionLabels
      .check}},{{end}}\n\t{{ slackURLAction &quot;View Health Check&quot; .permalink
      &quot;\U0001F515 Silence&quot; .silenceURL}}\n]\n</code></pre>\n\n<p>}\n{{ else
      }}\nCanary: {{.canary.name}}\n{{if .agent}}Agent: {{.agent.name}}{{end}}\nError:
      {{.status.error}}\n{{labelsFormat .check.labels}}</p>\n\n<p><a href=\"{{.permalink}}\"
      target=\"_blank\">Reference</a>\n{{end}}</p>\n"
  error: 'template: :1: unexpected "&" in operand'
  stacktrace: |-
    Oops: template: :1: unexpected "&" in operand
      --- at /go/pkg/mod/github.com/flanksource/gomplate/[email protected]/template.go:295 goTemplate()
      --- at /go/pkg/mod/github.com/flanksource/gomplate/[email protected]/structtemplater.go:161 StructTemplater.Template()
      --- at /go/pkg/mod/github.com/flanksource/gomplate/[email protected]/structtemplater.go:51 StructTemplater.StructField()
      --- at /go/pkg/mod/github.com/mitchellh/[email protected]/reflectwalk.go:387 walkStruct()
      --- at /go/pkg/mod/github.com/mitchellh/[email protected]/reflectwalk.go:206 walk()
      --- at /go/pkg/mod/github.com/mitchellh/[email protected]/reflectwalk.go:99 Walk()
      --- at /go/pkg/mod/github.com/flanksource/gomplate/[email protected]/structtemplater.go:121 StructTemplater.Walk()
      --- at /app/notification/shoutrrr.go:81 shoutrrrSend()
      --- at /app/notification/send.go:173 SendNotification()
      --- at /app/notification/send.go:135 sendEventNotification()
  time: '2024-09-24T10:36:26.333634785Z'
  trace: 01J8HSN5AXZEPE5GKX4MWH0NC4
hint: ''

• add tests