pom.xml: fix indentation and remove trailing whitespaces
pom.xml: fix indentation and remove trailing whitespaces

Signed-off-by: Markus Rathgeb <47d2fc6e26021cffb3672b45140ae29e1dd014a0@gmail.com>

abedwardsw/chromecast-java-api-v2,vitalidze/chromecast-java-api-v2