Minor: fixing gradle warnings

Signed-off-by: Max Lambrecht <maxlambrecht@gmail.com>

build.gradle

@@ -22,7 +22,7 @@ subprojects {
 
         testCompileOnly 'org.junit.jupiter:junit-jupiter-api:5.6.2'
         testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.6.2'
-        testCompile 'org.junit.jupiter:junit-jupiter-params:5.6.2'
+        testCompileOnly 'org.junit.jupiter:junit-jupiter-params:5.6.2'
         testCompileOnly 'org.mockito:mockito-core:3.3.3'
         testRuntimeOnly 'org.mockito:mockito-junit-jupiter:3.3.3'
 

java-spiffe-provider/build.gradle

@@ -10,6 +10,6 @@ apply plugin: 'com.github.johnrengelman.shadow'
 assemble.dependsOn shadowJar
 
 dependencies {
-    compile(project(":java-spiffe-core"))
+    implementation(project(":java-spiffe-core"))
 }