build: add fietsje config and alias for Delve debugger

Test Plan: Debugged a running process using `bazel run :dlv`.

X-Origin-Diff: phab/D550
GitOrigin-RevId: 3bea727afc0cc275fac19238067d871c42beef19
diff --git a/build/fietsje/BUILD.bazel b/build/fietsje/BUILD.bazel
index 4a5d3fb..70b6639 100644
--- a/build/fietsje/BUILD.bazel
+++ b/build/fietsje/BUILD.bazel
@@ -6,6 +6,7 @@
         "dependency.go",
         "deps_cilium.go",
         "deps_containerd.go",
+        "deps_delve.go",
         "deps_gvisor.go",
         "deps_kubernetes.go",
         "deps_sqlboiler.go",