Bump spock-core from 1.0-groovy-2.4 to 1.3-groovy-2.5 in /modules/spock (#1291)

Bumps spock-core from 1.0-groovy-2.4 to 1.3-groovy-2.5.

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

Author: dependabot[bot]

modules/spock/build.gradle

@@ -6,7 +6,7 @@ description = "Testcontainers :: Spock-Extension"
 
 dependencies {
     compile project(':testcontainers')
-    compile 'org.spockframework:spock-core:1.0-groovy-2.4'
+    compile 'org.spockframework:spock-core:1.3-groovy-2.5'
 
     testCompile project(':mysql')
     testCompile project(':postgresql')