Remove libxslt/libxml2 library from all Docker images

Takuya Noguchirequested to merge
964-remove-libxslt-from-all-docker-images into main

Removes libxslt/libxml2 library from all Docker images since nokogiri 1.11+ does not require these libraries.

Relates !1630 (closed)

Closes #964 (closed)

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