fix(ci): fix bench-matrix DAG dep, image registry prefix, workspace members

- Fix bench-matrix dependencies: [setup] → [setup, build-matrix]
  (bench-matrix consumes build-matrix artifacts, must declare the dep)
- Fix 8 image refs: pdftract-test-glibc:1.78 →
  ronaldraygun/pdftract-test-glibc:1.78 (unqualified fails ImagePullBackOff)
- Add crates/pdftract-cer-diff to workspace members in Cargo.toml
  (CI build-cer-diff step references this crate; missing caused cargo error)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.ci/argo-workflows/pdftract-ci.yaml

@@ -180,7 +180,7 @@ spec:
 
           - name: bench-matrix
             template: bench-matrix
-            dependencies: [setup]
+            dependencies: [setup, build-matrix]
             arguments:
               artifacts:
                 - name: pdftract-binary
@@ -389,7 +389,7 @@ spec:
               "build:x86_64-pc-windows-gnu": "ghcr.io/cross-rs/x86_64-pc-windows-gnu:main",
               "test:glibc": "rust:1.83-bookworm",
               "test:musl": "ghcr.io/cross-rs/x86_64-unknown-linux-musl:main",
-              "quality": "pdftract-test-glibc:1.78",
+              "quality": "ronaldraygun/pdftract-test-glibc:1.78",
               "msrv": "rust:1.78-slim",
               "bench": "python:3.11-slim-bookworm"
             }'
@@ -1186,7 +1186,7 @@ spec:
     - name: clippy-fmt
       activeDeadlineSeconds: 900
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -1289,7 +1289,7 @@ spec:
     - name: cargo-audit
       activeDeadlineSeconds: 300
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -1404,7 +1404,7 @@ spec:
     - name: cargo-deny
       activeDeadlineSeconds: 300
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -1521,7 +1521,7 @@ spec:
     - name: cargo-bloat
       activeDeadlineSeconds: 600
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -1660,7 +1660,7 @@ spec:
     - name: memory-ceiling
       activeDeadlineSeconds: 600
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -1873,7 +1873,7 @@ spec:
     - name: schema-gen
       activeDeadlineSeconds: 300
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -2054,7 +2054,7 @@ spec:
             path: /tmp/pdftract-binary
       activeDeadlineSeconds: 600
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |
@@ -2348,7 +2348,7 @@ spec:
             path: /tmp/pdftract-binary
       activeDeadlineSeconds: 360
       container:
-        image: pdftract-test-glibc:1.78
+        image: ronaldraygun/pdftract-test-glibc:1.78
         command: [bash, -c]
         args:
           - |

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "2"
-members = ["crates/pdftract-core", "crates/pdftract-cli", "crates/pdftract-py", "crates/pdftract-libpdftract"]
+members = ["crates/pdftract-core", "crates/pdftract-cli", "crates/pdftract-py", "crates/pdftract-libpdftract", "crates/pdftract-cer-diff"]
 exclude = ["tests/fixtures/generate_lzw_fixtures.rs"]
 
 [workspace.package]