If this can be done without too much manual effort, this would be helpful for all tools which use tesseract. The packages are incredibly simple:
valhallasw@tools-bastion-01:/usr/share/tesseract-ocr/tessdata$ dpkg -L tesseract-ocr-srp /. /usr /usr/share /usr/share/doc /usr/share/doc/tesseract-ocr-srp /usr/share/doc/tesseract-ocr-srp/copyright /usr/share/doc/tesseract-ocr-srp/changelog.Debian.gz /usr/share/tesseract-ocr /usr/share/tesseract-ocr/tessdata /usr/share/tesseract-ocr/tessdata/srp.traineddata
so it should be possible to just install the newer packages.