chore(ci): remove erroneous whitespace

Author: YOU54F

.github/workflows/build-test-publish.yml

@@ -70,12 +70,12 @@ jobs:
 
       - name: setup mono
         run: |
-          sudo apt install dirmngr ca-certificates gnupg
+          sudo apt install -y dirmngr ca-certificates gnupg
           sudo gpg --homedir /tmp --no-default-keyring --keyring \
             /usr/share/keyrings/mono-official-archive-keyring.gpg \
-            --keyserver hkp://keyserver.ubuntu.com:80 \ 
-            --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF \
-            echo "deb [signed-by=/usr/share/keyrings/mono-official-archive-keyring.gpg] https://download.mono-project.com/repo/debian stable-buster main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
+            --keyserver hkp://keyserver.ubuntu.com:80 \
+            --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+          echo "deb [signed-by=/usr/share/keyrings/mono-official-archive-keyring.gpg] https://download.mono-project.com/repo/debian stable-buster main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
           sudo apt update
           sudo apt install -y mono-complete