2.39.1

Various fixes & improvements

• fix(sourcemaps): Correctly read files with debug_id and debugId (#2268) by @loewenheim
• build: Remove unused dependencies (#2255) by @szokeasaurusrex
• ref(proguard): Define environment variable name in constant (#2265) by @szokeasaurusrex
• ref(test): Remove redundant line (#2266) by @szokeasaurusrex
• fix(proguard): Wait until chunks are assembled (#2267) by @szokeasaurusrex