chore: ⚙️ removing deploy and release branches from Travis-CI build

Signed-off-by: Marco Aurélio da Silva <marcoonroad@gmail.com>

.travis.yml

@@ -1,5 +1,9 @@
 language: c
 sudo: required
+branches:
+  except:
+    - deploy
+    - release
 install: test -e .travis.opam.sh || wget https://raw.githubusercontent.com/ocaml/ocaml-ci-scripts/master/.travis-opam.sh
 script: bash -ex .travis-opam.sh
 env: