✨ use bun as package manager and runner for the docke rcontainer, plus some tweak on the github action

packages/solver/__tests__/getBestRoute-fuzz.spec.ts

@@ -1,3 +1,4 @@
+import { it, expect } from "bun:test";
 import { getBestRoute } from "../getBestRoute";
 import { snake3, snake4 } from "@snk/types/__fixtures__/snake";
 import {

packages/solver/__tests__/getBestRoute.spec.ts

@@ -1,3 +1,4 @@
+import { it, expect } from "bun:test";
 import { getBestRoute } from "../getBestRoute";
 import { Color, createEmptyGrid, setColor } from "@snk/types/grid";
 import { createSnakeFromCells, snakeToCells } from "@snk/types/snake";

packages/solver/__tests__/getPathTo.spec.ts

@@ -1,3 +1,4 @@
+import { it, expect } from "bun:test";
 import { createEmptyGrid } from "@snk/types/grid";
 import { getHeadX, getHeadY } from "@snk/types/snake";
 import { snake3 } from "@snk/types/__fixtures__/snake";

packages/solver/__tests__/getPathToPose.spec.ts

@@ -1,3 +1,4 @@
+import { it, expect } from "bun:test";
 import { createSnakeFromCells } from "@snk/types/snake";
 import { getPathToPose } from "../getPathToPose";
 

packages/solver/__tests__/sortPush.spec.ts

@@ -1,3 +1,4 @@
+import { it, expect, describe } from "bun:test";
 import { sortPush } from "../utils/sortPush";
 
 const sortFn = (a: number, b: number) => a - b;