CI: Fix YAML, there shouldn't have been tabs in the file!

.github/workflows/ci.yml

@@ -38,17 +38,17 @@ jobs:
     - uses: awalsh128/cache-apt-pkgs-action@v1
       with:
         packages: >
-	  autoconf
+          autoconf
-	  automake
+          automake
-	  build-essential
+          build-essential
-	  expect
+          expect
-	  libident-dev
+          libident-dev
-	  libpam0g-dev
+          libpam0g-dev
-	  libssl-dev
+          libssl-dev
-	  libwrap0-dev
+          libwrap0-dev
-	  pkg-config
+          pkg-config
-	  telnet
+          telnet
-	  zlib1g-dev
+          zlib1g-dev
         version: 1.0
     - name: Generate build system files
       run: ./autogen.sh