Bootstrap plan generator: use cabal.bootstrap.project

We need to use the cabal.bootstrap.project file to generate the bootstrap plans, otherwise we try to include test components when bootstrapping, which is not useful (and significantly complicates bootstrapping).

I forgot to include this change in 88737ef7, but I used this change to generate the plans.

bootstrap/generate_bootstrap_plans

@@ -10,7 +10,7 @@ run() {
   local drv="ghc-$ver"
   echo "$ver"
   nix build -f "$ghcs_nix" $drv
-  (cd ../; rm -r dist-bootstrap; cabal --distdir=dist-bootstrap build --project-file=cabal.release.project --dry-run cabal-install:exe:cabal -w bootstrap/result/bin/ghc)
+  (cd ../; rm -r dist-bootstrap; cabal --distdir=dist-bootstrap build --project-file=cabal.bootstrap.project--dry-run cabal-install:exe:cabal -w bootstrap/result/bin/ghc)
   jq --sort-keys < ../dist-bootstrap/cache/plan.json > "plan-$ver.json"
   cabal run --with-ghc-pkg $PWD/boot_ghc/bin/ghc-pkg -w $PWD/boot_ghc/bin/ghc -v0 cabal-bootstrap-gen -- "plan-$ver.json" | jq --sort-keys | tee "linux-$(echo $ver | tr "_" ".").json"
 }