Bug 41478: Include vim in our containers.

Also, clean a little bit some other dependencies.

rbm.conf

@@ -279,9 +279,11 @@ var:
   essential_deps:
     - less
     - patch
-    - zip
     - unzip
+    - vim
+    - wget
     - xz-utils
+    - zip
     - zstd
 
 targets:
@@ -604,11 +606,9 @@ targets:
         - pkg-config
         - libssl-dev
         - build-essential
-        - ca-certificates
         - bison
         - automake
         - libtool
-        - less
       set_hardened_build_flags: |
         export DEB_BUILD_HARDENING=1
         export DEB_BUILD_OPTIONS='hardening=+bindnow,+relro,+pie,+fortify,+stackprotector,+stackprotectorstrong,+format'