minor #34714 Fix CI (nicolas-grekas)

This PR was merged into the 4.3 branch.

Discussion
----------

Fix CI

| Q             | A
| ------------- | ---
| Branch?       | 4.3
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

b9b3fd8 Fix CI

.travis.yml

@@ -266,6 +266,11 @@ install:
       run_tests () {
           set -e
           export PHP=$1
+
+          if [[ !$deps && $PHP = 7.2 ]]; then
+              tfold src/Symfony/Component/HttpClient.h2push "$COMPOSER_UP symfony/contracts && docker run -it --rm -v $(pwd):/app -v $(phpenv which composer):/usr/local/bin/composer -v /usr/local/bin/vulcain:/usr/local/bin/vulcain -w /app php:7.3-alpine ./phpunit src/Symfony/Component/HttpClient/Tests/CurlHttpClientTest.php --filter testHttp2Push"
+          fi
+
           if [[ $PHP != $TRAVIS_PHP_VERSION && $TRAVIS_PULL_REQUEST != false ]]; then
               echo -e "\\n\\e[33;1mIntermediate PHP version $PHP is skipped for pull requests.\\e[0m"
               return
@@ -283,10 +288,6 @@ install:
               echo "$COMPONENTS" | parallel --gnu "tfold {} 'cd {} && ([ -e composer.lock ] && ${COMPOSER_UP/update/install} || $COMPOSER_UP --prefer-lowest --prefer-stable) && $PHPUNIT_X'"
               echo "$COMPONENTS" | xargs -n1 -I{} tar --append -f ~/php-ext/composer-lowest.lock.tar {}/composer.lock
           else
-              if [[ $PHP = ${MIN_PHP%.*} ]]; then
-                  tfold src/Symfony/Component/HttpClient.h2push docker run -it --rm -v $(pwd):/app -v /usr/local/bin/vulcain:/usr/local/bin/vulcain -w /app php:7.3-alpine ./phpunit src/Symfony/Component/HttpClient/Tests/CurlHttpClientTest.php --filter testHttp2Push
-              fi
-
               echo "$COMPONENTS" | parallel --gnu "tfold {} $PHPUNIT_X {}"
 
               tfold src/Symfony/Component/Console.tty $PHPUNIT --group tty