[PR PATCH] imath: update to 3.1.6.

[motorto <motorto@users.noreply.github.com>]

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There is a new pull request by motorto against master on the void-packages repository

https://github.com/motorto/void-packages imath-3.1.6
https://github.com/void-linux/void-packages/pull/41690

imath: update to 3.1.6.
<!-- Uncomment relevant sections and delete options which are not applicable -->

#### Testing the changes
- I tested the changes in this PR: **YES**

#### Local build testing
```
SUMMARY                                    
pkg      host         target        cross  result
imath    x86_64       x86_64        n      OK
imath    x86_64-musl  x86_64-musl   n      OK
imath    i686         i686          n      OK
imath    x86_64-musl  aarch64-musl  y      OK
imath    x86_64-musl  aarch64       y      OK
imath    x86_64-musl  armv7l-musl   y      OK
imath    x86_64-musl  armv7l        y      OK
imath    x86_64-musl  armv6l-musl   y      OK
imath    x86_64-musl  armv6l        y      OK
```


A patch file from https://github.com/void-linux/void-packages/pull/41690.patch is attached

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From 37201392cf55bc180d577e5e4e186ff172aef185 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Cerqueira?= <acerqueira021@gmail.com>
Date: Tue, 17 Jan 2023 09:23:29 +0000
Subject: [PATCH] imath: update to 3.1.6.

---
 srcpkgs/imath/template | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/imath/template b/srcpkgs/imath/template
index 0123217d7aeb..2729357d7465 100644
--- a/srcpkgs/imath/template
+++ b/srcpkgs/imath/template
@@ -1,6 +1,6 @@
 # Template file for 'imath'
 pkgname=imath
-version=3.1.5
+version=3.1.6
 revision=1
 build_style=cmake
 configure_args="-DPYTHON=ON"
@@ -12,7 +12,7 @@ license="BSD-3-Clause"
 homepage="https://www.openexr.com/"
 changelog="https://raw.githubusercontent.com/AcademySoftwareFoundation/Imath/main/CHANGES.md"
 distfiles="https://github.com/AcademySoftwareFoundation/Imath/archive/v${version}/${pkgname}-${version}.tar.gz"
-checksum=1e9c7c94797cf7b7e61908aed1f80a331088cc7d8873318f70376e4aed5f25fb
+checksum=ea5592230f5ab917bea3ceab266cf38eb4aa4a523078d46eac0f5a89c52304db
 
 if [ "$XBPS_MACHINE" = "i686" ]
 then