build: update RobotFramework to 3.2.2 and robotframework-maven-plugin to 1.7.2

Changelogs:
* RobotFramework
  - https://github.com/robotframework/robotframework/blob/v3.2.2/doc/releasenotes/rf-3.2.rst
  - https://github.com/robotframework/robotframework/blob/v3.2.2/doc/releasenotes/rf-3.2.1.rst
  - https://github.com/robotframework/robotframework/blob/v3.2.2/doc/releasenotes/rf-3.2.2.rst
* robotframework-maven-plugin
  - https://github.com/robotframework/MavenPlugin/releases/tag/1.7.0
  - https://github.com/robotframework/MavenPlugin/releases/tag/1.7.1
  - https://github.com/robotframework/MavenPlugin/releases/tag/1.7.2

Fix #1395
Fix #1396

Author: php-coder

pom.xml

@@ -628,9 +628,9 @@
 
 		<resources.plugin.version>3.2.0</resources.plugin.version>
 		<robotframework-httprequest.version>0.0.15</robotframework-httprequest.version>
-		<robotframework-plugin.version>1.6.0</robotframework-plugin.version>
+		<robotframework-plugin.version>1.7.2</robotframework-plugin.version>
 		<robotframework-selenium.version>3.141.59.26535</robotframework-selenium.version>
-		<robotframework.version>3.1.2</robotframework.version>
+		<robotframework.version>3.2.2</robotframework.version>
 
 		<!-- Don't forget to update version in the ResourceUrl class and in the src/main/webapp/WEB-INF/views/series/add.html -->
 		<selectizejs.version>0.12.5</selectizejs.version>
@@ -1099,9 +1099,9 @@
 					<testCasesDirectory>${basedir}/src/test/robotframework</testCasesDirectory>
 					<xunitFile>NONE</xunitFile>
 					<randomize>suite</randomize>
-					<!-- See https://robotframework.org/robotframework/3.1.2/RobotFrameworkUserGuide.html#controlling-console-output -->
+					<!-- See https://robotframework.org/robotframework/3.2.2/RobotFrameworkUserGuide.html#controlling-console-output -->
 					<console>dotted</console>
-					<!-- See https://robotframework.org/robotframework/3.1.2/RobotFrameworkUserGuide.html#removing-keywords -->
+					<!-- See https://robotframework.org/robotframework/3.2.2/RobotFrameworkUserGuide.html#removing-keywords -->
 					<removeKeywords>PASSED</removeKeywords>
 					<!-- Handy for debugging. Log file will be created in target/ directory -->
 					<!--