workflows/{manual-nixos,nix-parse}: fix failing workflows (#406138)

Author: wolfgangwalther

.github/workflows/manual-nixos-v2.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Build NixOS manual
         id: build-manual
-        run: NIX_PATH=nixpkgs=$(pwd) nix-build --option restrict-eval true ci -A manual --argstr system ${{ matrix.system }}
+        run: NIX_PATH=nixpkgs=$(pwd) nix-build --option restrict-eval true ci -A manual-nixos --argstr system ${{ matrix.system }}
 
       - name: Upload NixOS manual
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2

.github/workflows/nix-parse-v2.yml

@@ -18,7 +18,6 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           ref: ${{ needs.get-merge-commit.outputs.mergedSha }}
-        if: ${{ env.CHANGED_FILES && env.CHANGED_FILES != '' }}
 
       - uses: cachix/install-nix-action@526118121621777ccd86f79b04685a9319637641 # v31
         with: