Upgrade to new major dependency versions

[nagyesta]

Issue: #373

Description

• Updates JDK version of APP module to JDK 17
• Fixes EC signature cryptography issue caused by deprecation of secp256k1
• Updates Spring Boot to latest
• Updates Spring to latest
• Updates Tomcat to latest
• Updates Logback to latest
• Updates Hibernate validator to latest
• Replaces javax.* packages with jakarta.* in imports
• Updates controller mappings to have them present with and without trailing slash
• Adds new test to verify that both request mapping variants are present every time
• Converts some classes to records
• Replaces unnecessary getters with Lombok Getter
• Starts using toList() collector where possible
• Replaces Spring dependencies with Picocontainer in Cucumber tests
• Updates Docker base image to use latest JRE 17
• Updates readmes to indicate accurate Java version of each artifact

Entry point

Checklists

• I have rebased my branch
• My commit message is meaningful
• The commit messages use semantic versioning: {major}, {minor} or {patch}
• The changes are focusing on the issue at hand
• I have maintained or increased test coverage

Notes

• Major update, the Lowkey Vault App requires Java 17 to work after this is merged

[codecov]

Codecov Report

Merging #679 (e510939) into main (623c8ac) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main     #679      +/-   ##
============================================
- Coverage     99.06%   99.06%   -0.01%     
+ Complexity     1848     1833      -15     
============================================
  Files           215      216       +1     
  Lines          4685     4683       -2     
  Branches        186      186              
============================================
- Hits           4641     4639       -2     
  Misses           34       34              
  Partials         10       10              

Flag	Coverage Δ
app	99.49% <100.00%> (-0.01%)	⬇️
client	94.11% <ø> (ø)
testcontainers	97.68% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...agyesta/lowkeyvault/controller/PingController.java	100.00% <ø> (ø)
...mmon/CommonCertificateBackupRestoreController.java	100.00% <ø> (ø)
...controller/common/CommonCertificateController.java	100.00% <ø> (ø)
...ller/common/CommonCertificatePolicyController.java	100.00% <ø> (ø)
...oller/common/CommonKeyBackupRestoreController.java	100.00% <ø> (ø)
...eyvault/controller/common/CommonKeyController.java	100.00% <ø> (ø)
...t/controller/common/CommonKeyCryptoController.java	100.00% <ø> (ø)
...er/common/CommonSecretBackupRestoreController.java	100.00% <ø> (ø)
...ault/controller/common/CommonSecretController.java	100.00% <ø> (ø)
...lt/controller/v7_2/KeyBackupRestoreController.java	100.00% <ø> (ø)
... and 59 more

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