fix: solve config bool field zero value bug by using pointer

[ev1lQuark]

Apply #2338 to main branch.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
52.2% Duplication

[codecov-commenter]

Codecov Report

Merging #2344 (ce0c626) into main (95b463b) will increase coverage by 0.00%.
The diff coverage is 79.06%.

❗ Current head ce0c626 differs from pull request most recent head 9e000fa. Consider uploading reports for the commit 9e000fa to get more accurate results

@@           Coverage Diff           @@
##             main    #2344   +/-   ##
=======================================
  Coverage   44.10%   44.10%           
=======================================
  Files         294      295    +1     
  Lines       17890    17933   +43     
=======================================
+ Hits         7890     7909   +19     
- Misses       9161     9180   +19     
- Partials      839      844    +5     

Impacted Files	Coverage Δ
cluster/router/tag/match.go	75.58% <0.00%> (-15.12%)	⬇️
config/provider_config.go	45.92% <ø> (ø)
config/tracing_config.go	66.66% <ø> (ø)
filter/metrics/filter.go	73.91% <0.00%> (-11.09%)	⬇️
protocol/dubbo3/dubbo3_invoker.go	58.33% <0.00%> (ø)
protocol/dubbo3/dubbo3_protocol.go	56.02% <0.00%> (ø)
cluster/router/tag/router.go	56.89% <50.00%> (-2.76%)	⬇️
metrics/prometheus/after_invocation.go	69.23% <71.42%> (-25.06%)	⬇️
metrics/prometheus/before_invocation.go	77.77% <77.77%> (ø)
metrics/prometheus/reporter.go	66.66% <80.00%> (+13.33%)	⬆️
... and 4 more

... and 1 file with indirect coverage changes

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[justxuewei]

Lgtm, thanks!

[chickenlj]

LGTM.