Don't pin TFP to minor version.

Johannes Ballé · copybara-github · commit 4764b6a5d0a3 · 2022-03-29T11:21:46.000-07:00
PiperOrigin-RevId: 438075853
Change-Id: Ife581648a16f55aacef8dd1624fe19a3c83022a4
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,3 @@
 scipy ~= 1.4
 tensorflow ~= 2.9.0
-tensorflow-probability ~= 0.15.0
+tensorflow-probability ~= 0.15
