Fix typo in test pipeline enforcement message

[kobisalant]

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[kobisalant]

@aviemzur

[coveralls]

Coverage decreased (-0.01%) to 70.162% when pulling c420c7b on kobisalant:fix-typo-in-TestPipeline into 48fee91 on apache:master.

[asfbot]

Refer to this link for build results (access rights to CI server needed):
https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/8850/
--none--

[coveralls]

Coverage decreased (-0.01%) to 70.162% when pulling cb05a20 on kobisalant:fix-typo-in-TestPipeline into 48fee91 on apache:master.

[asfbot]

Refer to this link for build results (access rights to CI server needed):
https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/8851/

Failed Tests: 1

beam_PreCommit_Java_MavenInstall/org.apache.beam:beam-examples-java: 1

• org.apache.beam.examples.WindowedWordCountIT.testWindowedWordCountInBatch

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[coveralls]

Coverage decreased (-0.003%) to 70.172% when pulling cb05a20 on kobisalant:fix-typo-in-TestPipeline into 48fee91 on apache:master.

[asfbot]

Refer to this link for build results (access rights to CI server needed):
https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/8852/
--none--