chore(lint): Update lint config

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

.golangci.yml

@@ -1,10 +1,6 @@
 linters-settings:
   govet:
-    check-shadowing: true
-    enable:
-      - fieldalignment
-  golint:
-    min-confidence: 0
+    enable-all: true
   gocyclo:
     min-complexity: 10
   goconst:
@@ -13,7 +9,6 @@ linters-settings:
   lll:
     line-length: 140
   nolintlint:
-    allow-leading-space: true # don't require machine-readable nolint directives (i.e. with no leading space)
     allow-unused: false # report any unused nolint directives
     require-explanation: false # don't require an explanation for nolint directives
     require-specific: false # don't require nolint directives to be specific about which linter is being skipped
@@ -23,11 +18,11 @@ linters:
   enable:
     - asciicheck
     - bodyclose
+    - copyloopvar
     - dogsled
     - dupl
     - errcheck
     - exhaustive
-    - exportloopref
     - funlen
     - gci
     - gochecknoglobals
@@ -41,7 +36,6 @@ linters:
     - gofumpt
     - goheader
     - goimports
-    - gomnd
     - gomodguard
     - goprintffuncname
     - gosec
@@ -50,6 +44,7 @@ linters:
     - ineffassign
     - lll
     - misspell
+    - mnd
     - nakedret
     - nestif
     - nlreturn