…raphql/graphql-spec#525, graphql/graphql-spec#805)

- allow `#[graphql(deprecated)]` and `#[deprecated]` attributes on struct fields in `#[derive(GraphQLInputObject)]` macro
- allow `#[graphql(deprecated)]` attribute on method arguments in `#[graphql_object]` and `#[graphql_interface]` macros
- allow `@deprecated` directive on arguments and input object fields
- add `__InputValue.isDeprecated` and `__InputValue.deprecationReason` fields
- add `includeDeprecated` argument to `__Type.inputFields`, `__Field.args` and `__Directive.args` fields
- make `includeDeprecated` argument of `__Type.fields`, `__Type.enumValues`, `__Type.inputFields`, `__Field.args` and `__Directive.args` fields non-`Null` (graphql/graphql-spec#1142)
- add `schema::meta::Argument::deprecation_status` field
- make `@deprecated(reason:)` argument non-`Null` (graphql/graphql-spec#1040)

Additionally:
- add `__Type.isOneOf` field (graphql/graphql-spec#825)
- add `SCHEMA`, `OBJECT`, `ARGUMENT_DEFINITION`, `INTERFACE`, `UNION`, `ENUM`, `INPUT_OBJECT` and `INPUT_FIELD_DEFINITION` values to `__DirectiveLocation` enum
- update canonical introspection query to 16.11.0 version of GraphQL.js
- fix incorrect `__Type.specifiedByUrl` field name to `__Type.specifiedByURL`
- fix missing `@specifiedBy(url:)` directive in SDL generated by `RootNode::as_sdl()` and `RootNode::as_document()` methods

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- refactor local declarative macro calling in unit tests of `juniper` crate

…raphql-spec#1170)

- add `description` field to `ast::Operation`, `ast::Fragment` and `ast::VariableDefinition` (graphql/graphql-spec#1170)
- support full Unicode range (graphql/graphql-spec#849, graphql/graphql-spec#687)
- support parsing block string literals
- support variable-length escaped Unicode characters in strings (graphql/graphql-spec#849, graphql/graphql-spec#687)
- fix incorrect double escaping in `ScalarToken::String` `Display`ing
- change `ScalarToken::String` to contain raw quoted and escaped `StringLiteral`
- add `LexerError::UnterminatedBlockString` variant

Additionally:
- move `String` parsing to `StringLiteral::parse()` method
- move lexer tests to `parser::lexer` module
- satisfy rustc linter when running `juniper` unit tests without features

#1347, graphql/graphql-spec#916)

- rename `ast::Operation::variable_definitions` field to `variables_definition`