Fix Linux Gitea workflow gates

.gitea/workflows/codegen.yml

@@ -7,6 +7,8 @@ on:
 jobs:
   deterministic:
     runs-on: ubuntu-latest
+    env:
+      CARGO_BUILD_JOBS: "1"
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
@@ -40,7 +42,7 @@ jobs:
           cargo test -p libremetaverse --lib joint_get_aliases_list
       - name: Build and audit clean Rust-only release artifacts
         run: |
-          cargo build --workspace --release --locked
+          cargo build -p libremetaverse-codegen --release --locked -j 1
           python3 tools/check_codegen_gate.py --release-dir target/release
       - name: Lint native generator
         run: |

.gitea/workflows/jpeg2000.yml

@@ -7,6 +7,11 @@ on:
 jobs:
   linux:
     runs-on: ubuntu-latest
+    env:
+      # Ubuntu 24.04 also ships an older libopenjp2.so.7. Ensure both
+      # pkg-config and the runtime loader select the audited 2.5.4 install.
+      PKG_CONFIG_PATH: /usr/local/lib/pkgconfig
+      LD_LIBRARY_PATH: /usr/local/lib
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
@@ -19,6 +24,7 @@ jobs:
           cmake --build /tmp/openjpeg-build --parallel
           sudo cmake --install /tmp/openjpeg-build
           sudo ldconfig
+          test "$(pkg-config --modversion libopenjp2)" = "2.5.4"
       - name: Build and test optional feature
         run: |
           cargo test -p libremetaverse-imaging --features jpeg2000

.gitea/workflows/skia.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Install native link prerequisites
         run: |
           sudo apt-get update
-          sudo apt-get install --yes curl pkg-config libfontconfig1-dev libfreetype6-dev
+          sudo apt-get install --yes build-essential clang curl ninja-build pkg-config python3 libfontconfig1-dev libfreetype6-dev
       - name: Test default and Skia feature builds
         run: |
           cargo test -p libremetaverse-imaging-skia --no-default-features