Bump jakarta.tck:sigtest-maven-plugin from 2.6 to 2.7

Bumps [jakarta.tck:sigtest-maven-plugin](https://github.com/eclipse-ee4j/jakartaee-tck-tools) from 2.6 to 2.7.
- [Release notes](https://github.com/eclipse-ee4j/jakartaee-tck-tools/releases)
- [Commits](https://github.com/eclipse-ee4j/jakartaee-tck-tools/commits)

---
updated-dependencies:
- dependency-name: jakarta.tck:sigtest-maven-plugin
  dependency-version: '2.7'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

tck/tck-runtime/pom.xml

@@ -39,7 +39,7 @@
         <servlet.api.version>6.2.0-SNAPSHOT</servlet.api.version>
         <!-- Plugin versions -->
         <shrinkwrap-resolver.version>3.3.7</shrinkwrap-resolver.version>
-        <sigtest.version>2.6</sigtest.version>
+        <sigtest.version>2.7</sigtest.version>
     </properties>
 
     <dependencies>
@@ -133,7 +133,7 @@
                     <plugin>
                         <groupId>jakarta.tck</groupId>
                         <artifactId>sigtest-maven-plugin</artifactId>
-                        <version>2.6</version>
+                        <version>2.7</version>
                         <configuration>
                             <sigfile>${project.build.directory}/jakarta.servlet.sig_${api.version}</sigfile>
                             <packages>jakarta.servlet,jakarta.servlet.annotation,jakarta.servlet.descriptor,jakarta.servlet.http</packages>