feat: add support for go-templates in argocd yaml files (#27766)

lib/modules/manager/argocd/__fixtures__/validApplication.yml

@@ -128,4 +128,13 @@ spec:
       helm:
         valueFiles:
           - $foo/values.yaml
-
+---
+{{- if .Values.enabled }}
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+  source:
+    chart: somechart
+    repoURL: https://git.example.com/foo/bar.git
+    targetRevision: 3.2.1
+{{- end }}

lib/modules/manager/argocd/extract.spec.ts

@@ -165,6 +165,12 @@ spec:
             depName: 'somechart',
             registryUrls: ['https://foo.io/repo'],
           },
+          {
+            currentValue: '3.2.1',
+            datasource: 'helm',
+            depName: 'somechart',
+            registryUrls: ['https://git.example.com/foo/bar.git'],
+          },
         ],
       });
     });

lib/modules/manager/argocd/extract.ts

@@ -36,6 +36,7 @@ export function extractPackageFile(
     definitions = parseYaml(content, null, {
       customSchema: ApplicationDefinition,
       failureBehaviour: 'filter',
+      removeTemplates: true,
     });
   } catch (err) {
     logger.debug({ err, packageFile }, 'Failed to parse ArgoCD definition.');