build(deps): bump org.slf4j:slf4j-nop from 1.7.36 to 2.0.16

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

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-nop
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ grails-gsp = '6.2.1'
 grails-testing-support = '3.2.2'
 grails-views = '3.2.3'
 micronaut = '3.10.4'
-slf4j = '1.7.36'
+slf4j = '2.0.16'
 
 [libraries]
 grails-gsp = { module = 'org.grails.plugins:gsp', version.ref = 'grails-gsp' }