Disable config file test for odoc_driver

It needs to be run manually, I could not make it run with cram tests.

src/driver/test/config_file/run.md

@@ -0,0 +1,31 @@
+Unfortunately, cram test do not work well to test `odoc_driver`, due to
+interaction with opam and the sandboxing.
+
+Here is how to test the "pkg_args" feature, **by hand**.
+
+From the test_odoc_driver/ folder:
+
+```shell
+$ opam pin .
+```
+
+Have a look at the `test_odoc_driver/odoc-config.sexp` file to see how it looks
+
+```shell
+$ cat test_odoc_driver/odoc-config.sexp
+(packages brr)
+(libraries brr brr.poke)
+```
+
+From where you want (Most likely the root of the repo):
+
+```shell
+$ dune exec -- odoc_driver -p test_odoc_driver -p brr --link-grep page-yo
+'odoc' 'link' '_odoc/test_odoc_driver/doc/page-yo.odoc' '-o' '_odoc/test_odoc_driver/doc/page-yo.odocl' '-I' '_odoc/test_odoc_driver/doc/' '-I' 'test_odoc_driver/lib/test_odoc_driver' '-P' 'brr:_odoc/brr/doc' '-P' 'test_odoc_driver:_odoc/test_odoc_driver/doc' '-L' 'brr.poke:_odoc/brr/lib/brr.poke' '-L' 'brr:_odoc/brr/lib/brr' '-L' 'test_odoc_driver:_odoc/test_odoc_driver/lib/test_odoc_driver' '--current-package' 'test_odoc_driver' '--enable-missing-root-warning'
+```
+
+You can also check the references in the `yo` page resolves, by visiting the
+generated page!
+
+You can change the `odoc-config.sexp`, `opam upgrade test_odoc_driver` and rerun
+the driver to see how that affects the `-P` and `-L` values passed.

src/driver/test/config_file/test_odoc_driver/dune-project

@@ -0,0 +1,9 @@
+(lang dune 3.16)
+
+(name test_odoc_driver)
+
+(generate_opam_files true)
+
+(package
+ (name test_odoc_driver)
+ (depends ocaml dune))