🚨 Add some tooling/ linting

.golangci.yaml

@@ -0,0 +1,48 @@
+version: "2"
+
+linters:
+  enable:
+    - errcheck
+    - govet
+    - ineffassign
+    - staticcheck
+    - unused
+    - copyloopvar
+    - dupl
+    - err113
+    - errname
+    - exptostd
+    - fatcontext
+    - funlen
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - godox
+    - gosec
+    - perfsprint
+    - testifylint
+  exclusions:
+    rules:
+      - path: '(.+)_test\.go'
+        linters:
+          - errcheck
+          - err113
+          - gosec
+          - gocognit
+          - gocyclo
+  settings:
+    testifylint:
+      enable-all: true
+      disable:
+        - require-error
+    gocognit:
+      min-complexity: 10
+    gocyclo:
+      min-complexity: 10
+    gocritic:
+      enable-all: true
+      settings:
+        hugeParam:
+          sizeThreshold: 255