Add/update filtered-sum-bms benchmark

spot-launcher/node_modules/@smithy/util-middleware/dist-es/getSmithyContext.js

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+import { SMITHY_CONTEXT_KEY } from "@smithy/types";
+export const getSmithyContext = (context) => context[SMITHY_CONTEXT_KEY] || (context[SMITHY_CONTEXT_KEY] = {});

spot-launcher/node_modules/@smithy/util-middleware/dist-es/index.js

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+export * from "./getSmithyContext";
+export * from "./normalizeProvider";

spot-launcher/node_modules/@smithy/util-middleware/dist-es/normalizeProvider.js

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+export const normalizeProvider = (input) => {
+    if (typeof input === "function")
+        return input;
+    const promisified = Promise.resolve(input);
+    return () => promisified;
+};