build: downgrade Spotless to 7.2.1 (#542)

Author: vbarua

build.gradle.kts

@@ -44,7 +44,7 @@ allprojects {
         googleJavaFormat()
         removeUnusedImports()
         trimTrailingWhitespace()
-        forbidWildcardImports()
+        removeWildcardImports()
       }
     }
   }

gradle/libs.versions.toml

@@ -23,7 +23,7 @@ scalatestplus-junit5 = "3.2.19.0"
 shadow = "9.2.2"
 slf4j = "2.0.17"
 spark = "3.4.4"
-spotless = "8.0.0"
+spotless = "7.2.1"
 
 [libraries]
 antlr4 = { module = "org.antlr:antlr4", version.ref = "antlr" }