Imath: update to 3.2.1 (#817)

Update `Imath` package for OpenEXR 3.4.0 compatibility as described in
the `OpenEXR` install documentation (3.4.0+ should use Imath 3.2).

Fixes: #816

Author: NeroBurner

cmake/configs/default.cmake

@@ -73,7 +73,7 @@ hunter_default_version(ICU VERSION 63.1-p5)
 hunter_default_version(IF97 VERSION 2.1.2)
 hunter_default_version(Igloo VERSION 1.1.1-hunter)
 hunter_default_version(IlmBase VERSION 2.5.1-p0)
-hunter_default_version(Imath VERSION 3.1.5)
+hunter_default_version(Imath VERSION 3.2.1)
 hunter_default_version(Immer VERSION 0.6.2-cf44615)
 hunter_default_version(Jpeg VERSION 9e-p0)
 hunter_default_version(JsonSpirit VERSION 0.0.4-hunter)

cmake/projects/Imath/hunter.cmake

@@ -53,6 +53,17 @@ hunter_add_version(
     afc0f2d2a5e4630da6be4148c3cf67d9936b7302
 )
 
+hunter_add_version(
+    PACKAGE_NAME
+    Imath
+    VERSION
+    3.2.1
+    URL
+    "https://github.com/AcademySoftwareFoundation/Imath/archive/refs/tags/v3.2.1.tar.gz"
+    SHA1
+    07ed91019762d83b92d6e9a6a996fe8d7857405e
+)
+
 hunter_cmake_args(
     Imath
     CMAKE_ARGS