[Android] Upgrade Retrofit to v2.6.1

[Geoffrey Métais]

vlc-android | branch: 3.2.x | Geoffrey Métais <geoffrey.metais at gmail.com> | Wed Jul 31 15:27:20 2019 +0200| [287cae69725c57d32ec393a2f29dbf3a2e15e75a] | committer: Geoffrey Métais

Upgrade Retrofit to v2.6.1

(cherry picked from commit 861d2f9b2d22b3b797c264211f1b170449c15f7d)

> https://code.videolan.org/videolan/vlc-android/commit/287cae69725c57d32ec393a2f29dbf3a2e15e75a
---

 build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index 8501dcbba..3118d825f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,7 +52,7 @@ ext {
     junitVersion = '4.12'
     mockito = '2.8.9'
     powerMock = '1.7.4'
-    retrofit = '2.6.0'
+    retrofit = '2.6.1'
     espressoVersion = '3.1.1'
     supportTest = '1.1.0'
 //    versionCode scheme is T M NN RR AA