[2/15] refactor(bisect): pass `Bounds` to `Strategy::midpoint`

[arxanas]

Stack:

• https://github.com/arxanas/git-branchless/pull/1220
• https://github.com/arxanas/git-branchless/pull/1221
• https://github.com/arxanas/git-branchless/pull/1222
• https://github.com/arxanas/git-branchless/pull/1223
• https://github.com/arxanas/git-branchless/pull/1224
• https://github.com/arxanas/git-branchless/pull/1225
• https://github.com/arxanas/git-branchless/pull/1226
• https://github.com/arxanas/git-branchless/pull/1227
• https://github.com/arxanas/git-branchless/pull/1228
• https://github.com/arxanas/git-branchless/pull/1229
• https://github.com/arxanas/git-branchless/pull/1184
• https://github.com/arxanas/git-branchless/pull/1230
• https://github.com/arxanas/git-branchless/pull/1231
• https://github.com/arxanas/git-branchless/pull/1232
• https://github.com/arxanas/git-branchless/pull/1233

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refactor(bisect): pass Bounds to Strategy::midpoint

I forgot that we have a container type for the success+failure bounds, so use that here.