Upgrade to MSSQL JDBC 12.8.0.jre11

Closes gh-41809

Author: snicoll

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1377,7 +1377,7 @@ bom {
 			releaseNotes("https://github.com/mongodb/mongo-java-driver/releases/tag/r{version}")
 		}
 	}
-	library("MSSQL JDBC", "12.6.3.jre11") {
+	library("MSSQL JDBC", "12.8.0.jre11") {
 		prohibit {
 			endsWith(".jre8")
 			because "we want to use the jre11 version"
@@ -1386,10 +1386,6 @@ bom {
 			endsWith("-preview")
 			because "we only want to use non-preview releases"
 		}
-		prohibit {
-			versionRange "[12.7.0,12.7.0]"
-			because "it's actually a preview release"
-		}
 		group("com.microsoft.sqlserver") {
 			modules = [
 				"mssql-jdbc"