bump ocmal version from 4.05.0 to 4.08.1

Author: xaki23

Makefile.builder

@@ -1,6 +1,6 @@
 MIRAGE_KERNEL_NAME = qubes_ssh_agent.xen
 #SOURCE_BUILD_DEP := ssh-agent-build-dep
-OCAML_VERSION ?= 4.05.0
+OCAML_VERSION ?= 4.08.1
 
 #ssh-agent-build-dep:
 #	opam pin -y add angstrom https://github.com/reynir/angstrom.git#no-c-blit

README.md

@@ -6,8 +6,8 @@ A WIP ssh-agent [Mirage](https://mirage.io/) unikernel for [Qubes OS](https://qu
 
 First, you need to install `opam` the OCaml package manager. Check out the instructions at http://opam.ocaml.org/doc/Install.html.
 Once installed it will use the system-installed OCaml compiler.
-You may have to compile a newer version of OCaml - for example version 4.02.3 is confirmed not to work (the version shipped with debian 9). Version 4.05.0 is confirmed to work.
-To compile 4.05.0, run `opam switch install 4.05.0`. Then run `eval $(opam config env)` as the command should tell you to do.
+You may have to compile a newer version of OCaml - for example version 4.02.3 is confirmed not to work (the version shipped with debian 9). Version 4.08.1 is confirmed to work.
+To compile 4.08.1, run `opam switch install 4.08.1`. Then run `eval $(opam config env)` as the command should tell you to do.
 
 You should now have a working OCaml setup to continue.