pin flate2 under 1.1.5 (RustPython#6335)

Author: youknowone

Cargo.lock

@@ -83,7 +83,7 @@ unicode-bidi-mirroring = { workspace = true }
 # compression
 adler32 = "1.2.0"
 crc32fast = "1.3.2"
-flate2 = { version = "1.1", default-features = false, features = ["zlib-rs"] }
+flate2 = { version = "<=1.1.5", default-features = false, features = ["zlib-rs"] }
 libz-sys = { package = "libz-rs-sys", version = "0.5" }
 bzip2 = "0.6"