Increase max compression ratio to 100x.

Compression ratios as high as 12.55x have been seen in the wild.
diff --git a/src/bloaty.cc b/src/bloaty.cc
index ed8bb76..3a8e868 100644
--- a/src/bloaty.cc
+++ b/src/bloaty.cc
@@ -1357,7 +1357,7 @@
   if (!arena_) {
     THROW("This range sink isn't prepared to zlib decompress.");
   }
-  if (uncompressed_size > static_cast<uint64_t>(data.size()) * 12) {
+  if (uncompressed_size > static_cast<uint64_t>(data.size()) * 100) {
     fprintf(stderr,
             "warning: ignoring compressed debug data, implausible uncompressed "
             "size (compressed: %zu, uncompressed: %" PRIu64 ")\n",