build: migration of spring boot to v3

Description

build: migration of spring boot to v3

• upgraded spring boot from v3
• upgraded spring framework to v6
• moved javax.* modules to jakarta.* (for applicable)
• migrated javax.mail to jakarta.mail

BREAKING CHANGE: New spring boot and framework version

How to test

Build and run tests

Author's checklist

• I have followed the contribution guidelines
• This MR has been tested or does not change functionality
• I have added relevant merge request dependencies (if this MR has any)
• I have added the correct labels
• I have assigned reviewers (if any are relevant)
• I have edited the documentation (if the changes require it) or I have noted the need for the change if I do not have access to the documentation
• I have marked all introduced BREAKING CHANGES or necessary DEPLOYMENT NOTES in the commit message(s)

Reviewer's checklist

• This MR has been tested or does not change functionality
• This MR has correct commit message format

Related issues

Closes STR-1202