Fix compilation

Author: slonopotamus

gitlfs-common/src/test/kotlin/ru/bozaro/gitlfs/common/data/BatchResTest.kt

@@ -33,7 +33,7 @@ class BatchResTest {
             Assert.assertEquals(link.href, URI("https://some-download.com"))
             Assert.assertEquals(
                 link.header,
-                ImmutableMap.builder<Any?, Any?>()
+                ImmutableMap.builder<Any, Any>()
                     .put("Authorization", "Basic ...")
                     .build()
             )

gitlfs-common/src/test/kotlin/ru/bozaro/gitlfs/common/data/LinkTest.kt

@@ -22,7 +22,7 @@ class LinkTest {
         Assert.assertNotNull(link)
         Assert.assertEquals(link.href, URI("https://storage-server.com/OID"))
         Assert.assertEquals(link.header,
-                ImmutableMap.builder<Any?, Any?>()
+                ImmutableMap.builder<Any, Any>()
                         .put("Authorization", "Basic ...")
                         .build()
         )
@@ -35,7 +35,7 @@ class LinkTest {
         Assert.assertNotNull(link)
         Assert.assertEquals(link.href, URI("https://api.github.com/lfs/bozaro/git-lfs-java"))
         Assert.assertEquals(link.header,
-                ImmutableMap.builder<Any?, Any?>()
+                ImmutableMap.builder<Any, Any>()
                         .put("Authorization", "RemoteAuth secret")
                         .build()
         )

gitlfs-common/src/test/kotlin/ru/bozaro/gitlfs/common/data/ObjectResTest.kt

@@ -32,7 +32,7 @@ class ObjectResTest {
         Assert.assertNotNull(link)
         Assert.assertEquals(link.href, URI("https://storage-server.com/OID"))
         Assert.assertEquals(link.header,
-                ImmutableMap.builder<Any?, Any?>()
+                ImmutableMap.builder<Any, Any>()
                         .put("Authorization", "Basic ...")
                         .build()
         )
@@ -49,7 +49,7 @@ class ObjectResTest {
         Assert.assertNotNull(link)
         Assert.assertEquals(link.href, URI("https://some-upload.com"))
         Assert.assertEquals(link.header,
-                ImmutableMap.builder<Any?, Any?>()
+                ImmutableMap.builder<Any, Any>()
                         .put("Authorization", "Basic ...")
                         .build()
         )