Support new delimiters in spring.config.location

[ryanjbaxter]

Fixes #1895
Requires Boot 2.4.7

[spencergibb]

how about a test?

[spencergibb]

Could delete the hooks from test repo, but LGTM

[philwebb]

If back compatibility is an issue then you could pick the delimiter based on the presence of the ConfigDataLocation.split() method.

[ryanjbaxter]

I think we are fine with not being compatible with releases prior to Boot 2.4.7.

[codecov]

Codecov Report

Merging #1904 (71c8dfe) into main (b1e795d) will increase coverage by 0.03%.
The diff coverage is 70.58%.

@@             Coverage Diff              @@
##               main    #1904      +/-   ##
============================================
+ Coverage     78.13%   78.16%   +0.03%     
- Complexity     1325     1329       +4     
============================================
  Files           167      167              
  Lines          4894     4901       +7     
  Branches        657      657              
============================================
+ Hits           3824     3831       +7     
  Misses          807      807              
  Partials        263      263              

Impacted Files	Coverage Δ
...erver/environment/NativeEnvironmentRepository.java	81.32% <70.58%> (+0.19%)	⬆️
...oud/config/server/support/AbstractScmAccessor.java	81.44% <0.00%> (+1.03%)	⬆️

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