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* 6.2:
  [ExpressionLanguage] Fix BC of cached SerializedParsedExpression containing GetAttrNode
  [HttpKernel] Fix CacheAttributeListener priority
  [DependencyInjection] Fix bug when tag name is a text node
  [VarExporter] Fix adding a key to an uninitialized array
  Fix missing command not matching namespace error message
  [SecurityBundle] Fix authenticator existence check in `Security::login()`
  [TwigBundle] Alias BodyRendererInterface
  Point `Security::*` constants to `SecurityRequestAttributes::*` ones
  [Translation] Fix extraction when dealing with VariadicPlaceholder parameters