.gitignore: ignore /bots even if it's a symlink
.gitignore: ignore /bots even if it's a symlink

Having a / at the end of the ignore pattern causes a symlink not to be
ignored.  For some time now, tools/make-bots can put a symlink there, so
ignore that too.

mvollmer/cockpit,martinpitt/cockpit,mvollmer/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,mvollmer/cockpit,cockpit-project/cockpit,martinpitt/cockpit,cockpit-project/cockpit,mvollmer/cockpit,martinpitt/cockpit,cockpit-project/cockpit,martinpitt/cockpit,mvollmer/cockpit,martinpitt/cockpit