fix(tvix/derivation): fix build after StorePath rename

This project was not previously covered by CI (fixed in this commit),
so we didn't catch breakage due to a renamed module.

This was noticed while rebasing a CL that has a dependency on this
crate in its Nix build.

Change-Id: Ic48570b9313e5f73e14daab50cf7ea70918c94d1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7778
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

tvix/Cargo.lock

@@ -488,20 +488,6 @@ version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23d8666cb01533c39dde32bcbab8e227b4ed6679b2c925eba05feabea39508fb"
 
-[[package]]
-name = "derivation"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "glob",
- "serde",
- "serde_json",
- "sha2",
- "test-case",
- "test-generator",
- "tvix-store-bin",
-]
-
 [[package]]
 name = "diff"
 version = "0.1.13"
@@ -2197,6 +2183,20 @@ dependencies = [
  "tvix-eval",
 ]
 
+[[package]]
+name = "tvix-derivation"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "glob",
+ "serde",
+ "serde_json",
+ "sha2",
+ "test-case",
+ "test-generator",
+ "tvix-store-bin",
+]
+
 [[package]]
 name = "tvix-eval"
 version = "0.1.0"