docker-client: bump Maven (#15000)

Signed-off-by: Adam Korczynski <adam@adalogics.com>

Author: AdamKorcz

projects/docker-client/Dockerfile

@@ -14,10 +14,10 @@
 #
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 FROM gcr.io/oss-fuzz-base/base-builder-jvm
-RUN curl -L https://archive.apache.org/dist/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.zip -o maven.zip && \
+RUN curl -L https://archive.apache.org/dist/maven/maven-3/3.9.9/binaries/apache-maven-3.9.9-bin.zip -o maven.zip && \
     unzip maven.zip -d $SRC/maven && \
     rm -rf maven.zip
-ENV MVN $SRC/maven/apache-maven-3.6.3/bin/mvn
+ENV MVN $SRC/maven/apache-maven-3.9.9/bin/mvn
 RUN git clone --depth 1 https://github.com/spotify/docker-client docker-client
 COPY *.sh *.java $SRC/
 WORKDIR $SRC/docker-client