Fix Wrong Map Pointer (#3311)

[borongyuan]

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Basic Info

Info	Please fill out this column
Ticket(s) this addresses	#3311
Primary OS tested on	Ubuntu
Robotic platform tested on	Gazebo Simulation of TurtleBot3, Our Own Robot)

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Description of contribution in a few bullet points

Not assigning fixed map pointer to particle filter, using latest when resample.

Description of documentation updates required from your changes

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Future work that may be required in bullet points

I only made this fix for Foxy branch. Other branches may have the same issue. I also have Humble environment, but I haven't had much time lately to check and test. It would be great if you could help to check.

For Maintainers:

• Check that any new parameters added are updated in navigation.ros.org
• Check that any significant change is added to the migration guide
• Check that any new features OR changes to existing behaviors are reflected in the tuning guide
• Check that any new functions have Doxygen added
• Check that any new features have test coverage
• Check that any new plugins is added to the plugins page
• If BT Node, Additionally: add to BT's XML index of nodes for groot, BT package's readme table, and BT library lists

[mergify]

@borongyuan, all pull requests must be targeted towards the main development branch.
Once merged into main, it is possible to backport to @foxy-devel, but it must be in main
to have these changes reflected into new distributions.

[mergify]

@borongyuan, please properly fill in PR template in the future. @SteveMacenski, use this instead.

• Check that any new parameters added are updated in navigation.ros.org
• Check that any significant change is added to the migration guide
• Check that any new features OR changes to existing behaviors are reflected in the tuning guide
• Check that any new functions have Doxygen added
• Check that any new features have test coverage
• Check that any new plugins is added to the plugins page
• If BT Node, Additionally: add to BT's XML index of nodes for groot, BT package's readme table, and BT library lists