Bump org.jetbrains.gradle.plugin.idea-ext from 1.3 to 1.4

Bumps org.jetbrains.gradle.plugin.idea-ext from 1.3 to 1.4.

---
updated-dependencies:
- dependency-name: org.jetbrains.gradle.plugin.idea-ext
  dependency-version: '1.4'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 shadow = "9.3.1"
-gradleideaext = "1.3"
+gradleideaext = "1.4"
 annotations = "26.0.2-1"
 gson = "2.13.2"
 commonslang3 = "3.20.0"