- bump dependencies

- bump git action versions

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tiffwrite"
-version = "2025.9.1"
+version = "2025.12.0"
 edition = "2024"
 rust-version = "1.85.1"
 authors = ["Wim Pomp <w.pomp@nki.nl>"]
@@ -18,20 +18,20 @@ name = "tiffwrite"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-colorcet = "0.2.1"
-colorgrad = "0.7.2"
-chrono = "0.4.41"
-css-color = "0.2.8"
-flate2 = "1.1.1"
-ndarray = "0.16.1"
-num = "0.4.3"
-numpy = { version = "0.25.0", optional = true }
-rayon = "1.10.0"
-thiserror = "2.0.16"
-zstd = "0.13.3"
+colorcet = "0.2"
+colorgrad = "0.8"
+chrono = "0.4"
+css-color = "0.2"
+flate2 = "1"
+ndarray = "0.17"
+num = "0.4"
+numpy = { version = "0.27", optional = true }
+rayon = "1"
+thiserror = "2"
+zstd = "0.13"
 
 [dependencies.pyo3]
-version = "0.25.1"
+version = "0.27"
 features = ["extension-module", "abi3-py310", "generate-import-lib", "anyhow", "multiple-pymethods"]
 optional = true