contrib: update PyOxidizer to 0.10.3 stable

contrib: update PyOxidizer to 0.10.3

This is necessary to work around a bug that caused build failures on
current stable with 0.9.0. This patch was used to build the 5.7rc0 Windows
installers.

Differential Revision: https://phab.mercurial-scm.org/D9858

--- a/contrib/automation/hgautomation/linux.py	Fri Jan 08 16:58:23 2021 +0100
+++ b/contrib/automation/hgautomation/linux.py	Sun Jan 24 18:24:11 2021 -0800
@@ -75,7 +75,7 @@
 sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup install 1.31.1 1.46.0
 sudo -H -u hg -g hg /home/hg/.cargo/bin/rustup component add clippy
 
-sudo -H -u hg -g hg /home/hg/.cargo/bin/cargo install --version 0.9.0 pyoxidizer
+sudo -H -u hg -g hg /home/hg/.cargo/bin/cargo install --version 0.10.3 pyoxidizer
 '''
 
 

--- a/contrib/install-windows-dependencies.ps1	Fri Jan 08 16:58:23 2021 +0100
+++ b/contrib/install-windows-dependencies.ps1	Sun Jan 24 18:24:11 2021 -0800
@@ -125,7 +125,7 @@
     Invoke-Process "${prefix}\cargo\bin\rustup.exe" "component add clippy"
 
     # Install PyOxidizer for packaging.
-    Invoke-Process "${prefix}\cargo\bin\cargo.exe" "install --version 0.9.0 pyoxidizer"
+    Invoke-Process "${prefix}\cargo\bin\cargo.exe" "install --version 0.10.3 pyoxidizer"
 }
 
 function Install-Dependencies($prefix) {