fix: lotus-wallet: correct network in version

[rjan90]

Adding $(GOFLAGS) so that when compiling lotus-wallet on calibnet, the correct network is shown, instead of showing just lotus-wallet version x.xx.x+mainnet. Should address 2. in #8459

Checklist

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• All commits have a clear commit message.
• The PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, INTERFACE BREAKING CHANGE, CONSENSUS BREAKING, build, chore, ci, docs,perf, refactor, revert, style, test
  • area: api, chain, state, vm, data transfer, market, mempool, message, block production, multisig, networking, paychan, proving, sealing, wallet, deps
• This PR has tests for new functionality or change in behaviour
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[codecov]

Codecov Report

Merging #8563 (04bb539) into master (1162b02) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8563      +/-   ##
==========================================
- Coverage   40.83%   40.76%   -0.08%     
==========================================
  Files         686      686              
  Lines       75587    75587              
==========================================
- Hits        30867    30810      -57     
- Misses      39391    39446      +55     
- Partials     5329     5331       +2     

Impacted Files	Coverage Δ
itests/kit/blockminer.go	70.10% <0.00%> (-19.57%)	⬇️
chain/sub/incoming.go	58.10% <0.00%> (-2.45%)	⬇️
chain/events/events_called.go	85.85% <0.00%> (-2.44%)	⬇️
storage/wdpost_sched.go	79.41% <0.00%> (-1.97%)	⬇️
extern/storage-sealing/currentdealinfo.go	70.17% <0.00%> (-1.76%)	⬇️
node/impl/full/mpool.go	46.95% <0.00%> (-1.74%)	⬇️
miner/miner.go	55.73% <0.00%> (-1.64%)	⬇️
chain/stmgr/searchwait.go	67.30% <0.00%> (-1.29%)	⬇️
extern/sector-storage/sched.go	85.93% <0.00%> (-0.77%)	⬇️
chain/store/store.go	64.33% <0.00%> (-0.67%)	⬇️
... and 12 more