gha: temporarily override buildkit version for tests

This includes a single fix that only affects the tests, so using
a temporary override to update the tests to make CI pass, but keeping
the module version to the tagged release.

https://github.com/moby/buildkit/compare/v0.10.3..0da740f7d4f782a52b416a44f564ac37504b9ee1

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.github/workflows/ci.yml

@@ -124,7 +124,9 @@ jobs:
         name: BuildKit ref
         run: |
           ./hack/go-mod-prepare.sh
-          echo "BUILDKIT_REF=$(./hack/buildkit-ref)" >> $GITHUB_ENV
+          echo "BUILDKIT_REF=0da740f7d4f782a52b416a44f564ac37504b9ee1" >> $GITHUB_ENV
+# FIXME(thaJeztah) temporarily overriding version to use for tests to include https://github.com/moby/buildkit/pull/2872
+#          echo "BUILDKIT_REF=$(./hack/buildkit-ref)" >> $GITHUB_ENV
         working-directory: moby
       -
         name: Checkout BuildKit ${{ env.BUILDKIT_REF }}

vendor.mod

@@ -48,7 +48,7 @@ require (
 	github.com/klauspost/compress v1.15.1
 	github.com/miekg/dns v1.1.27
 	github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible
-	github.com/moby/buildkit v0.10.3
+	github.com/moby/buildkit v0.10.3 // FIXME(thaJeztah) when updating, remove the temporary override in /.github/workflows/ci.yml
 	github.com/moby/ipvs v1.0.1
 	github.com/moby/locker v1.0.1
 	github.com/moby/swarmkit/v2 v2.0.0-20220420172245-6068d1894d46