False positive error for action output

On example on [this](https://github.com/Cardinal-Cryptography/aleph-node/actions/runs/5356212949/jobs/9715455989) run:
> EA811: action create-featurenet step 5 Called step with id 'get-argocd-featurnet-app-name' output 'name' does not exist
EA811: action create-featurenet step 6 Called step with id 'get-argocd-featurnet-app-name' output 'name' does not exist
EA811: action create-featurenet step 8 Called step with id 'get-argocd-featurnet-app-name' output 'name' does not exist
EA811: action delete-featurenet step 6 Called step with id 'get-argocd-featurnet-app-name' output 'name' does not exist
EA811: action delete-featurenet step 9 Called step with id 'get-argocd-featurnet-app-name' output 'name' does not exist
This error comes from the below code
```yaml
- name: Get argocd featurenet app name
id: get-argocd-featurnet-app-name
shell: bash
env:
# yamllint disable-line rule:line-length
APP_NAME: ${{ inputs.featurenet-name != '' && inputs.featurenet-name || format('{0}{1}', 'fe-', steps.get-ref-properties.outputs.branch-name-for-argo) }}
run: |
echo "name=${{ env.APP_NAME }}" >> $GITHUB_OUTPUT
```
Most likely problem is that validator sees GH expression and cannot parse `name` identifier correctly.

[The workaround is:](https://github.com/Cardinal-Cryptography/aleph-node/pull/1266/commits/bd1783cef6fbf842f6a43200eae61ade8c22791c)
```yaml
- name: Get argocd featurenet app name
id: get-argocd-featurnet-app-name
shell: bash
env:
# yamllint disable-line rule:line-length
APP_NAME: ${{ inputs.featurenet-name != '' && inputs.featurenet-name || format('{0}{1}', 'fe-', steps.get-ref-properties.outputs.branch-name-for-argo) }}
run: |
name_local=${{ env.APP_NAME }}
echo "name=$name_local" >> $GITHUB_OUTPUT
```

首先使用 issue 中显示的 GitHub Actions YAML 重现报告的 EA811 诊断，然后检查 validator 如何处理用于 action 输出赋值的表达式。完成标准是：所示 workflow 不再产生错误的 'output does not exist' 错误，同时仍能检测到确实缺失的输出。

由索引模型根据 Issue 内容生成。