[flake]: 'run itests postgres' flake

[jtobin]

This job failed flakily in CI, in particular at:

      - name: run itest
        run: make itest-parallel dbbackend=postgres tranches=4

[ffranr]

These are the two ways I’ve seen this job flake (including your link above):

Flake 1

Action logs: https://github.com/lightninglabs/taproot-assets/actions/runs/20132306164/job/57776548278

        utils.go:468: Minted 1 units of asset ID 37b7cc6ae2b51a6887d88358ec9dfc336c5e48f227106544785af99691984058, group_key=035ef155679011d9fa8d2fd2ce50b339c2c482cb986029e18110c663e959a50979 (name itestbuxx-collectible-tranche-43,v1)
        assertions.go:1807: 
            	Error Trace:	/home/runner/work/taproot-assets/taproot-assets/itest/assertions.go:1807
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/multi_asset_group_test.go:325
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/test_harness.go:160
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/integration_test.go:131
            	Error:      	Received unexpected error:
            	            	roots not equal
            	Test:       	TestTaprootAssetsDaemon/tranche01/46-of-100/sending_multi_asset_groups_hashmail_courier
        assertions.go:1794: 
            	Error Trace:	/home/runner/work/taproot-assets/taproot-assets/itest/assertions.go:1794
            	            				/home/runner/work/go/pkg/mod/github.com/lightningnetwork/lnd@v0.20.0-beta.rc4.0.20251127014118-f8b5cb0e8918/lntest/wait/wait.go:51
            	            				/home/runner/work/go/pkg/mod/github.com/lightningnetwork/lnd@v0.20.0-beta.rc4.0.20251127014118-f8b5cb0e8918/lntest/wait/wait.go:27
            	            				/opt/hostedtoolcache/go/1.24.9/x64/src/runtime/asm_amd64.s:1700
            	Error:      	Received unexpected error:
            	            	rpc error: code = DeadlineExceeded desc = context deadline exceeded
            	Test:       	TestTaprootAssetsDaemon/tranche01/46-of-100/sending_multi_asset_groups_hashmail_courier
    harness_miner.go:149: Mined 0 blocks when cleanup the mempool
FAIL

Flake 2

Action logs: https://github.com/lightninglabs/taproot-assets/actions/runs/20854548109/job/59917547328?pr=1941

        full_value_split_test.go:103: 
            	Error Trace:	/home/runner/work/taproot-assets/taproot-assets/itest/full_value_split_test.go:103
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/full_value_split_test.go:59
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/test_harness.go:160
            	            				/home/runner/work/taproot-assets/taproot-assets/itest/integration_test.go:131
            	Error:      	Received unexpected error:
            	            	rpc error: code = DeadlineExceeded desc = context deadline exceeded
            	Test:       	TestTaprootAssetsDaemon/tranche01/40-of-101/full_value_send
    harness_miner.go:149: Mined 0 blocks when cleanup the mempool
FAIL