Alinux isc buildcache (#30462)

Add two new stacks targeted at x86_64 and arm, representing an initial list of packages 
used by current and planned AWS Workshops, and built in conjunction with the ISC22
announcement of the spack public binary cache.

Co-authored-by: Scott Wittenburg <scott.wittenburg@kitware.com>

var/spack/repos/builtin/packages/simde/package.py

@@ -18,6 +18,7 @@ class Simde(MesonPackage):
     url      = "https://github.com/simd-everywhere/simde/archive/v0.6.0.tar.gz"
     git      = "https://github.com/simd-everywhere/simde.git"
 
+    version('0.7.2', sha256='366d5e9a342c30f1e40d1234656fb49af5ee35590aaf53b3c79b2afb906ed4c8')
     version('0.6.0', sha256='25a8b8c69c17ddc2f6209e86caa6b12d4ed91c0f841617efc56e5675eea84915')
 
     patch('sve-gcc.patch', when='@0.6.0 %gcc')