chore: fix samples tests (#66)

* make file executable

* update lib version

* remove unused samples.cfg

Author: anguillanneuf

.kokoro/continuous/samples.cfg

@@ -45,7 +45,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsublite</artifactId>
-      <version>0.0.1-SNAPSHOT</version>
+      <version>0.1.4</version><!-- {x-version-update:google-cloud-pubsublite:current} -->
     </dependency>
     <dependency>
       <groupId>com.google.cloud</groupId>

.kokoro/nightly/samples.cfg

@@ -64,7 +64,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsublite</artifactId>
-      <version>0.0.1-SNAPSHOT</version><!--    TODO: remove after release    -->
+      <version>0.1.4</version><!-- {x-version-update:google-cloud-pubsublite:current} -->
     </dependency>
     <!-- A logging dependency used by the underlying library  -->
     <dependency>