ci: bump mcpp to 0.0.8 (namespace-aware index support)

Author: Sunrisepeak

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
 
       - name: Install xlings
         env:
-          XLINGS_VERSION: 0.4.25
+          XLINGS_VERSION: 0.4.30
         run: |
           tarball="xlings-${XLINGS_VERSION}-linux-x86_64.tar.gz"
           curl -fsSL -o "/tmp/${tarball}" \
@@ -23,17 +23,17 @@ jobs:
           "/tmp/xlings-${XLINGS_VERSION}-linux-x86_64/subos/default/bin/xlings" self install
           echo "$HOME/.xlings/subos/current/bin" >> "$GITHUB_PATH"
 
-      - name: Install workspace tools (.xlings.json → mcpp 0.0.7)
+      - name: Install workspace tools (.xlings.json → mcpp 0.0.8)
         run: xlings install -y
 
       # Cache mcpp's self-bootstrapped sandbox (musl-gcc + binutils +
       # glibc + ninja + patchelf, ~800 MB). Toolchain set is pinned by
-      # mcpp 0.0.7, so a fixed key suffices.
+      # mcpp 0.0.8, so a fixed key suffices.
       - name: Cache mcpp sandbox
         uses: actions/cache@v4
         with:
-          path: ~/.xlings/data/xpkgs/xim-x-mcpp/0.0.7/registry
-          key: mcpp-sandbox-${{ runner.os }}-mcpp0.0.7
+          path: ~/.xlings/data/xpkgs/xim-x-mcpp/0.0.8/registry
+          key: mcpp-sandbox-${{ runner.os }}-mcpp0.0.8
 
       - name: Build with mcpp
         run: mcpp build

.xlings.json

@@ -1,5 +1,5 @@
 {
   "workspace": {
-    "mcpp": { "linux": "0.0.7" }
+    "mcpp": { "linux": "0.0.8" }
   }
 }