.travis.yml: run the copr build job as first in the matrix

... because it usually takes long time to complete.

Suggested-by: Pavel Raiskup

Author: kdudka

.travis.yml

@@ -5,6 +5,11 @@ if: branch = master
 
 matrix:
     include:
+        - name: "Fedora Copr build"
+          dist: focal
+          env:
+              - COPR_BUILD=yes
+
         - name: "Ubuntu LTS 2014 (trusty)"
           dist: trusty
 
@@ -17,11 +22,6 @@ matrix:
         - name: "Ubuntu LTS 2020 (focal)"
           dist: focal
 
-        - name: "Fedora Copr build"
-          dist: focal
-          env:
-              - COPR_BUILD=yes
-
 install:
     - sudo apt-get install cmake help2man libboost-dev libboost-filesystem-dev libboost-program-options-dev libboost-python-dev libboost-regex-dev