Merge pull request #587 from 55728/support-actual-text-in-marked-content

Support ActualText in marked content for text extraction

Merge pull request #590 from yob/encoding-replacement-character

ensure all returned strings have a valid encoding

Improve conversion of PDFDocEncoding strings outside content streams

Improve handling of UTF16 strings with invalid bytes

Merge pull request #589 from yob/text-encoding-improvements

Small improvements to EncodingUtils

Merge pull request #588 from yob/extract-encoding-utils

extract text encoding utilities to a dedicated class with specs

Merge pull request #584 from yob/truffleruby-33-0-1

Update truffleruby specs from 33.0.0 -> 33.0.1

Merge pull request #583 from yob/truffleruby

Add truffleruby to the CI matrix

Merge pull request #582 from yob/more-cmap-tests