Maven plugin: fix parameters parsing: customAnnotationsMapping/directiveAnnotationsMapping #389 (#391)

* Generate primitive types for non-null GraphQL types #305

* Possibility to override primitives generation in Maven plugin

* Fix GraphQLConfiguration - use extended scalars

* Support multiple queries in a single request #340

* Add multi-request samples to maven plugin #340

* Add non-null assertion for GraphQL operation type

Bumps [spring-boot-starter-web](https://github.com/spring-projects/spring-boot) from 2.3.2.RELEASE to 2.3.3.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.3.2.RELEASE...v2.3.3.RELEASE)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [spring-boot-starter-data-mongodb](https://github.com/spring-projects/spring-boot) from 2.3.2.RELEASE to 2.3.3.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.3.2.RELEASE...v2.3.3.RELEASE)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Support multiple annotations #248  (#273)

* Fix request serialization if null input was supplied #271

* Support multiple annotations #248

* Update docs

* Remove generateAsyncApi, rename apiReturnType, apiReturnListType #269 (#274)

* Remove generateAsyncApi, rename apiReturnType, apiReturnListType #269

* Introduce config useOptionalForNullableReturnTypes #269

* Update migration guide #269

* Ability to generate only root interface with all apis #270 (#275)

* Bump version to 3.0.0-SNAPSHOT

Bumps [spring-boot-starter-web](https://github.com/spring-projects/spring-boot) from 2.3.1.RELEASE to 2.3.2.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.3.1.RELEASE...v2.3.2.RELEASE)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [spring-boot-starter-data-mongodb](https://github.com/spring-projects/spring-boot) from 2.3.1.RELEASE to 2.3.2.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.3.1.RELEASE...v2.3.2.RELEASE)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>