Depend on ign-rendering 3.5

[chapulina]

This version is required since #819 and #825.

We should always bump the version on CMakeLists to provide users feedback about why their version combination may not be compiling.

We should also update the dependency version on -release repo (in this case https://github.com/ignition-release/ign-gazebo3-release), when we make a new release.

[codecov]

Codecov Report

Merging #867 (36600a1) into ign-gazebo3 (01fc2ff) will increase coverage by 12.23%.
The diff coverage is 90.52%.

❗ Current head 36600a1 differs from pull request most recent head 1263aca. Consider uploading reports for the commit 1263aca to get more accurate results

@@               Coverage Diff                @@
##           ign-gazebo3     #867       +/-   ##
================================================
+ Coverage        65.71%   77.94%   +12.23%     
================================================
  Files              127      215       +88     
  Lines             6238    12077     +5839     
================================================
+ Hits              4099     9414     +5315     
- Misses            2139     2663      +524     

Impacted Files	Coverage Δ
include/ignition/gazebo/EntityComponentManager.hh	100.00% <ø> (ø)
include/ignition/gazebo/Link.hh	100.00% <ø> (ø)
include/ignition/gazebo/Model.hh	100.00% <ø> (ø)
include/ignition/gazebo/SdfEntityCreator.hh	100.00% <ø> (ø)
include/ignition/gazebo/Server.hh	100.00% <ø> (ø)
include/ignition/gazebo/ServerConfig.hh	100.00% <ø> (ø)
include/ignition/gazebo/System.hh	100.00% <ø> (ø)
include/ignition/gazebo/components/Component.hh	100.00% <ø> (ø)
include/ignition/gazebo/gui/GuiEvents.hh	0.00% <0.00%> (ø)
src/SimulationRunner.hh	100.00% <ø> (ø)
... and 197 more

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