Migrate to JDK 17

[php-coder]

Should be done after migration to JDK11 (#1158).

Related resources:

• Java 12
  • [ ] https://www.baeldung.com/java-12-new-features
  • [ ] https://www.oracle.com/java/technologies/javase/12all-relnotes.html
  • [x] https://java-lessons.ru/java-12/indent (in Russian)
  • [x] https://java-lessons.ru/java-12/transform (in Russian)
  • [x] https://java-lessons.ru/java-12/switch-operator (in Russian)
  • [x] https://java-lessons.ru/java-12/collectors-teeing (in Russian)
  • [x] https://www.baeldung.com/java12-string-api
• Java 13
  • [ ] https://www.baeldung.com/java-13-new-features
  • [ ] https://www.oracle.com/java/technologies/javase/13all-relnotes.html
• Java 14
  • [ ] https://www.baeldung.com/java-14-new-features
  • [x] https://www.baeldung.com/java-record-keyword
  • [ ] https://www.oracle.com/java/technologies/javase/14all-relnotes.html
  • [ ] https://www.twilio.com/blog/java-14-new-features-for-developers-graded (+pinboard)
• Java 15
  • [ ] https://www.baeldung.com/java-15-new
  • [ ] https://www.oracle.com/java/technologies/javase/15all-relnotes.html
  • [x] https://www.twilio.com/blog/whats-new-for-developers-java-15 (+pinboard)
  • [ ] https://seanjmullan.org/blog/2020/10/13/jdk15
  • [ ] Use pattern matching for instanceof
• Java 16
  • [ ] https://www.baeldung.com/java-16-new-features
  • [ ] https://www.oracle.com/java/technologies/javase/16all-relnotes.html
• Java 17
  • [ ] https://www.baeldung.com/java-17-new-features
  • [ ] https://blog.codecentric.de/en/2021/12/migrating-spring-boot-java-17/ (+pinboard)
  • [ ] https://habr.com/ru/company/otus/blog/592585/ (in Russian, +pinboard)
• [ ] https://docs.openrewrite.org/recipes/java/migrate/upgradetojava17
• [ ] https://docs.openrewrite.org/running-recipes/popular-recipe-guides/migrate-to-java-17
• [ ] ci: remove support for JDK 11