pin bazel version at 8.2.1 and fix compilation failures due to bzlmod

[noajshu]

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[noajshu]

At some point in the past we figured out that there was a define -DNDEBUG=0 needed to make HiGHS integer programming fast. But it seems it got lost somewhere so I've added it back here. Nice 1.5x speedup for the simplex decoder:
r5d5 superdense p=.001 si1000 200 shots
226 seconds to 146 seconds

bazel build  src:simplex && time ./bazel-bin/src/simplex --circuit ./testdata/colorcodes/r=5,d=5,p=0.001,noise=si1000,c=superdense_color_code_X,q=37,gates=cz.stim --sample-num-shots 200 --threads 2 --sample-seed 912485734

num_shots = 200 num_errors = 2 total_time_seconds = 225.8835120000002

build --cxxopt='-DNDEBUG=0' src:simplex && time ./bazel-bin/src/simplex --circuit ./testdata/colorcodes/r=5,d=5,p=0.001,noise=si1000,c=superdense_color_code_X,q=37,gates=cz.stim --sample-num-shots 200 --threads 2 --sample-seed 912485734

num_shots = 200 num_errors = 2 total_time_seconds = 146.193164