feat: add CI config (#12)

I realised we have tests here that are not being run. This PR adds the
CI config we had in `go-libstoracha`.

Author: alanshaw

.github/workflows/go-check.yml

@@ -0,0 +1,18 @@
+name: Go Checks
+
+on:
+  pull_request:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'push' && github.sha || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  go-check:
+    uses: ipdxco/unified-github-workflows/.github/workflows/go-check.yml@v1.0

.github/workflows/go-test-config.json

@@ -0,0 +1,4 @@
+{
+  "skip32bit": true,
+  "skipOSes": ["windows"]
+}

.github/workflows/go-test.yml

@@ -0,0 +1,22 @@
+name: Go Test
+
+on:
+  pull_request:
+  push:
+    branches: ['main']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name == 'push' && github.sha || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  go-test:
+    uses: ipdxco/unified-github-workflows/.github/workflows/go-test.yml@v1.0
+    with:
+      go-versions: '["this"]'
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

ucan/proof_chain_test.go

@@ -44,15 +44,6 @@ func (f *memLister) List(ctx context.Context, aud ucan.Principal, cmd ucan.Comma
 	}
 }
 
-// erroringLister yields a single error from the iterator.
-type erroringLister struct{ err error }
-
-func (f *erroringLister) List(ctx context.Context, aud ucan.Principal, cmd ucan.Command, sub ucan.Subject) iter.Seq2[ucan.Delegation, error] {
-	return func(yield func(ucan.Delegation, error) bool) {
-		yield(nil, f.err)
-	}
-}
-
 func assertChain(t *testing.T, proofs []ucan.Delegation, links []ucan.Link, want []ucan.Delegation) {
 	t.Helper()
 	require.Len(t, proofs, len(want), "proof chain length")