[maven-release-plugin] prepare release twelvemonkeys-3.12.0

bom/pom.xml

common/common-image/pom.xml

common/common-io/pom.xml

common/common-lang/pom.xml

common/pom.xml

contrib/pom.xml

imageio/imageio-batik/pom.xml

imageio/imageio-bmp/pom.xml

imageio/imageio-clippath/pom.xml

imageio/imageio-core/pom.xml

imageio/imageio-dds/pom.xml

imageio/imageio-hdr/pom.xml

imageio/imageio-icns/pom.xml

imageio/imageio-iff/pom.xml

imageio/imageio-jpeg-jai-interop/pom.xml

imageio/imageio-jpeg-jep262-interop/pom.xml

imageio/imageio-jpeg/pom.xml

imageio/imageio-metadata/pom.xml

imageio/imageio-pcx/pom.xml

imageio/imageio-pdf/pom.xml