perf: build denort with panic = "abort" for releases

[nathanwhit]

This PR changes CI to build denort with a separate, new build profile release-slim that disables unwinding and strips symbols. This reduces the size of denort by about 10%

current denort:

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  58.1%  39.3Mi  57.9%  39.3Mi    __TEXT,__text
  31.5%  21.3Mi  31.4%  21.3Mi    __TEXT,__const
   2.5%  1.68Mi   2.5%  1.68Mi    __DATA_CONST,__const
   2.4%  1.62Mi   2.4%  1.62Mi    __TEXT,__eh_frame
   2.4%  1.60Mi   2.4%  1.60Mi    __TEXT,__gcc_except_tab
   0.9%   610Ki   0.9%   610Ki    __TEXT,__cstring
   0.8%   536Ki   0.8%   536Ki    Code Signature
   0.7%   507Ki   0.7%   507Ki    __TEXT,__unwind_info
   0.3%   207Ki   0.3%   207Ki    Function Start Addresses
   0.2%   165Ki   0.2%   165Ki    __DATA,__data
   0.0%       0   0.2%   153Ki    __DATA,__bss
   0.1%  51.0Ki   0.1%  51.0Ki    Rebase Info
   0.1%  45.3Ki   0.1%  45.3Ki    __TEXT,__literals
   0.0%  31.4Ki   0.1%  36.8Ki    [15 Others]
   0.0%  25.6Ki   0.0%  25.7Ki    [__TEXT]
   0.0%  19.3Ki   0.0%  20.2Ki    [__DATA]
   0.0%  8.11Ki   0.0%  8.11Ki    Lazy Binding Info
   0.0%       8   0.0%  8.08Ki    [__LINKEDIT]
   0.0%  6.84Ki   0.0%  6.84Ki    Symbol Table
   0.0%  5.55Ki   0.0%  5.55Ki    String Table
   0.0%  5.53Ki   0.0%  5.53Ki    __TEXT,__ustring
 100.0%  67.6Mi 100.0%  67.8Mi    TOTAL

built with this PR:

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  59.6%  36.6Mi  59.5%  36.6Mi    __TEXT,__text
  34.6%  21.3Mi  34.5%  21.3Mi    __TEXT,__const
   2.7%  1.68Mi   2.7%  1.68Mi    __DATA_CONST,__const
   1.0%   610Ki   1.0%   610Ki    __TEXT,__cstring
   0.8%   487Ki   0.8%   487Ki    Code Signature
   0.3%   193Ki   0.3%   193Ki    Function Start Addresses
   0.3%   165Ki   0.3%   165Ki    __DATA,__data
   0.0%       0   0.2%   153Ki    __DATA,__bss
   0.2%   152Ki   0.2%   152Ki    __TEXT,__unwind_info
   0.1%  69.5Ki   0.1%  69.5Ki    __TEXT,__eh_frame
   0.1%  50.9Ki   0.1%  50.9Ki    Rebase Info
   0.1%  45.3Ki   0.1%  45.3Ki    __TEXT,__literals
   0.1%  34.1Ki   0.1%  39.5Ki    [15 Others]
   0.0%  19.3Ki   0.0%  20.2Ki    [__DATA]
   0.0%  19.6Ki   0.0%  19.7Ki    [__TEXT]
   0.0%  16.6Ki   0.0%  16.6Ki    __TEXT,__gcc_except_tab
   0.0%  8.09Ki   0.0%  8.09Ki    Lazy Binding Info
   0.0%       8   0.0%  7.69Ki    [__LINKEDIT]
   0.0%  6.83Ki   0.0%  6.83Ki    Symbol Table
   0.0%  5.77Ki   0.0%  5.77Ki    [__DATA_CONST]
   0.0%  5.53Ki   0.0%  5.53Ki    __TEXT,__ustring
 100.0%  61.4Mi 100.0%  61.6Mi    TOTAL

A caveat is that this will increase release build times in CI since it requires building twice - once with unwinding and once without

[littledivy]

LGTM

[bartlomieju]

LGTM, let's land it and evaluate it on main.