feat: add go-task, set up prettier, format yaml (#50)

Taskfile.yml

@@ -0,0 +1,16 @@
+---
+version: "3"
+
+vars:
+  PROJECT_DIR:
+    sh: "git rev-parse --show-toplevel"
+  CLUSTER_DIR: "{{.PROJECT_DIR}}/cluster"
+
+env:
+  KUBECONFIG: "{{.PROJECT_DIR}}/kubeconfig"
+
+includes:
+  flux: .taskfiles/flux.yml
+  format: .taskfiles/format.yml
+  lint: .taskfiles/lint.yml
+  pre-commit: .taskfiles/pre-commit.yml