chore(docs): fix README to match the almalinux_9_azure_64k_aarch64 source name.

[adelton]

Amend README to match the change in #244.

[adelton]

For consistency sake, should https://github.com/AlmaLinux/cloud-images/blob/main/almalinux_kitten_10_azure.pkr.hcl be fixed to also use almalinux_kitten_10_azure_64k_aarch64 instead of almalinux_kitten_10_azure_aarch64_64k? That might also allow simplification of the logic in

cloud-images/.github/actions/shared-steps/action.yml

Lines 162 to 176 in fa36818

	azure*kitten*)
	packer_source=almalinux_kitten_10_${{ inputs.type }}_${{ env.alma_arch }}
	[[ ${{ env.version_major }} == *"v2"* ]] && packer_source="${packer_source}_v2"
	[[ ${{ inputs.variant }} == *"64k"* ]] && packer_source="${packer_source}_64k"
	output_mask=output-${packer_source}/AlmaLinux-Kitten-*.${{ env.alma_arch }}*.raw
	aws_s3_path=images/kitten/10/${{ inputs.type }}/${{ env.TIME_STAMP }}
	packer_source=qemu.${packer_source}
	;;
	azure10)
	packer_source=almalinux_${{ env.version_major }}_${{ inputs.type }}_${{ env.alma_arch }}
	[[ ${{ env.version_major }} == *"v2"* ]] && packer_source="${packer_source}_v2"
	[[ ${{ inputs.variant }} == *"64k"* ]] && packer_source="almalinux_${{ env.version_major }}_${{ inputs.type }}_64k_${{ env.alma_arch }}"
	output_mask=output-${packer_source}/AlmaLinux-*.${{ env.alma_arch }}*.raw
	packer_source=qemu.${packer_source}
	;;

.