Bump org.slf4j:slf4j-simple from 1.7.36 to 2.0.16 in /spi-fly

Bumps org.slf4j:slf4j-simple from 1.7.36 to 2.0.16.

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-simple
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

spi-fly/pom.xml

@@ -62,7 +62,7 @@
         <mockito.core.version>5.9.0</mockito.core.version>
         <osgi.core.version>5.0.0</osgi.core.version>
         <osgi.test.version>1.1.0</osgi.test.version>
-        <slf4j.version>1.7.36</slf4j.version>
+        <slf4j.version>2.0.16</slf4j.version>
 
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>