Updates rubocop-performance and config

.rubocop.yml

@@ -4,10 +4,20 @@ AllCops:
   Exclude:
   - '*.gemspec'
   - 'vendor/**/*'
+Layout/EmptyLinesAroundAttributeAccessor:
+  Enabled: true
 Layout/LineLength:
   Max: 120
+Layout/SpaceAroundMethodCallOperator:
+  Enabled: true
+Lint/DeprecatedOpenSSLConstant:
+  Enabled: true
 Lint/UriEscapeUnescape:
   Enabled: false
+Lint/RaiseException:
+  Enabled: true
+Lint/StructNewOverride:
+  Enabled: true
 Metrics/AbcSize:
   Max: 25
 Metrics/BlockLength:
@@ -27,8 +37,18 @@ Style/ClassVars:
   Enabled: false
 Style/Documentation:
   Enabled: false
+Style/ExponentialNotation:
+  Enabled: true
 Style/FormatStringToken:
   Enabled: false
+Style/HashEachMethods:
+  Enabled: true
+Style/HashTransformKeys:
+  Enabled: true
+Style/HashTransformValues:
+  Enabled: true
 Style/NumericPredicate:
   Exclude:
   - 'app/controllers/vuln_api.rb'
+Style/SlicingWithRange:
+  Enabled: true