Bump activej-boot from 5.2 to 5.3

Bumps [activej-boot](https://github.com/activej/activej) from 5.2 to 5.3.
- [Release notes](https://github.com/activej/activej/releases)
- [Commits](https://github.com/activej/activej/compare/v5.2...v5.3)

---
updated-dependencies:
- dependency-name: io.activej:activej-boot
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -28,7 +28,7 @@ dependencies {
     implementation 'org.jsoup:jsoup:1.15.1'
     implementation 'io.activej:activej-common:5.3'
     implementation 'io.activej:activej-http:5.3'
-    implementation 'io.activej:activej-boot:5.2'
+    implementation 'io.activej:activej-boot:5.3'
     implementation 'io.activej:activej-specializer:5.3'
     implementation 'io.activej:activej-launchers-http:5.3'
     implementation 'org.hsqldb:hsqldb:2.6.1'