Upgrade mockito-core to 2.26.0

Also upgrade byte-buddy to the corresponding 1.9.10 version.

Change-Id: Ib539b06b03874fad8ddc841cdbdaf864aea17ea0
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 38c6d9c..fe9ef0f 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -3,8 +3,8 @@
 def external_plugin_deps():
     maven_jar(
         name = "mockito",
-        artifact = "org.mockito:mockito-core:2.25.1",
-        sha1 = "e8fa2864b65c0b6fbb20daa436a94853bcd17e5e",
+        artifact = "org.mockito:mockito-core:2.26.0",
+        sha1 = "17fb1bf75af4f5a18d8dec73b3aa55f18e6fa21a",
         deps = [
             "@byte-buddy//jar",
             "@byte-buddy-agent//jar",
@@ -12,18 +12,18 @@
         ],
     )
 
-    BYTE_BUDDY_VERSION = "1.9.7"
+    BYTE_BUDDY_VERSION = "1.9.10"
 
     maven_jar(
         name = "byte-buddy",
         artifact = "net.bytebuddy:byte-buddy:" + BYTE_BUDDY_VERSION,
-        sha1 = "8fea78fea6449e1738b675cb155ce8422661e237",
+        sha1 = "211a2b4d3df1eeef2a6cacf78d74a1f725e7a840",
     )
 
     maven_jar(
         name = "byte-buddy-agent",
         artifact = "net.bytebuddy:byte-buddy-agent:" + BYTE_BUDDY_VERSION,
-        sha1 = "8e7d1b599f4943851ffea125fd9780e572727fc0",
+        sha1 = "9674aba5ee793e54b864952b001166848da0f26b",
     )
 
     maven_jar(