[RelEng] Make read of releaseName more robust in publication pipeline #3310
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Don't launch Maven to output the interpolated
releaseNameproperty, but instead read thereleaseYearandreleaseMonthproperties from the raw (eclipse-platform-parent/pom.xml) file.This avoids problems if at the time of the release (candidate) build a snapshot version was used, e.g. of Tycho, that's not available anymore at the time of the publication (because e.g. that Tycho version was released in the meantime).