Bump spring-boot.version from 2.7.2 to 2.7.3 (#232)

Bumps `spring-boot.version` from 2.7.2 to 2.7.3.

Updates `spring-boot-dependencies` from 2.7.2 to 2.7.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.2...v2.7.3)

Updates `spring-boot-starter-test` from 2.7.2 to 2.7.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.2...v2.7.3)

Updates `spring-boot-maven-plugin` from 2.7.2 to 2.7.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.7.2...v2.7.3)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-test
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -55,7 +55,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <!--dependencies-->
-        <spring-boot.version>2.7.2</spring-boot.version>
+        <spring-boot.version>2.7.3</spring-boot.version>
         <spring-shell.version>2.1.0</spring-shell.version>
         <sshd.version>2.9.0</sshd.version>
         <junit-jupiter.version>5.9.0</junit-jupiter.version>