Merge pull request #36819 from bfredl/zigrt

feat(build): make build.zig useful for full runtime install

.github/workflows/test.yml

@@ -217,10 +217,10 @@ jobs:
       - run: sudo apt-get install -y inotify-tools
 
       - run: zig build test_nlua0
-      - run: zig build nvim && ./zig-out/bin/nvim --version
+      - run: zig build nvim_bin && ./zig-out/bin/nvim --version
       - run: zig build unittest
       - run: zig build functionaltest
-      # `zig build nvim` uses a lua script for doctags in order to support cross-compiling
+      # `zig build` uses a lua script for doctags in order to support cross-compiling
       # compare with the builtin generator that they match
       - run: cd runtime; ../zig-out/bin/nvim -u NONE -i NONE -e --headless -c "helptags ++t doc" -c quit
       - run: diff -u runtime/doc/tags zig-out/runtime/doc/tags