Update spring-boot version to 2.5.x

[DanielFran]

Fix #15387

Depends on jhipster/jhipster-bom#353

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[DanielFran]

@jhipster/developers spring-data-elasticsearch search method has been removed in spring-boot 2.5 version.

This is affecting:

• https://github.com/jhipster/generator-jhipster/blob/main/generators/entity-server/templates/src/main/java/package/common/search_stream_template.ejs#L26
• https://github.com/jhipster/generator-jhipster/blob/main/generators/entity-server/templates/src/main/java/package/common/search_template.ejs#L46
• https://github.com/jhipster/generator-jhipster/blob/main/generators/entity-server/templates/src/main/java/package/service/impl/EntityServiceImpl.java.ejs#L260
• https://github.com/jhipster/generator-jhipster/blob/main/generators/server/templates/src/main/java/package/web/rest/PublicUserResource.java.ejs#L175

Any suggestion on what would be the best approach to solve this issue?

[mraible]

@DanielFran Anything I can do to help?

[DanielFran]

@mraible I am just short of time, but will try to finish it this week.
Basically just missing elasticsearch

[DanielFran]

Superseded by #15633