Bump spring-boot-starter-parent from 2.6.3 to 2.6.4 (#541)

* Bump spring-boot-starter-parent from 2.6.3 to 2.6.4

Bumps [spring-boot-starter-parent](https://github.com/spring-projects/spring-boot) from 2.6.3 to 2.6.4.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.6.3...v2.6.4)

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

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

* ATS-981 / ACS-2626: Reverse temp workaround (as we upgrade to Spring Boot 2.6.4)

- note:
  - Spring Boot 2.6.3 - tomcat-embed-core 9.0.56 (=> CVE-2022-23181)
  - Spring Boot 2.6.4 - tomcat-embed-core 9.0.58

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jan Vonka <jan.vonka@alfresco.com>

[skip ci] as we need to pick up upstream projects

pom.xml

@@ -9,7 +9,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.6.3</version>
+        <version>2.6.4</version>
         <relativePath />
     </parent>
 
@@ -249,15 +249,6 @@
         </dependencies>
     </dependencyManagement>
 
-    <!-- ATS-981: Avoid CVE-2022-23181 with spring-boot-starter-web 2.6.3 -->
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.tomcat.embed</groupId>
-            <artifactId>tomcat-embed-core</artifactId>
-            <version>9.0.58</version>
-        </dependency>
-    </dependencies>
-
     <distributionManagement>
         <snapshotRepository>
             <id>alfresco-public-snapshots</id>