fix(ci): revert unnecessary workflow changes

Revert cache key versioning, mkdir -p, and Windows env var exclusion
that were not needed and diverged from upstream without justification.

Author: febyeji

.github/workflows/benchmarks.yml

@@ -23,7 +23,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4
@@ -34,7 +34,7 @@ jobs:
         if: "(steps.cache-bitcoind.outputs.cache-hit != 'true' || steps.cache-electrs.outputs.cache-hit != 'true')"
         run: |
           source ./scripts/download_bitcoind_electrs.sh
-          mkdir -p bin
+          mkdir bin
           mv "$BITCOIND_EXE" bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
           mv "$ELECTRS_EXE" bin/electrs-${{ runner.os }}-${{ runner.arch }}
       - name: Set bitcoind/electrs environment variables

.github/workflows/rust.yml

@@ -53,7 +53,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
-          key: bitcoind-29.0-${{ runner.os }}-${{ runner.arch }}
+          key: bitcoind-${{ runner.os }}-${{ runner.arch }}
       - name: Enable caching for electrs
         id: cache-electrs
         uses: actions/cache@v4
@@ -64,11 +64,10 @@ jobs:
         if: "matrix.platform != 'windows-latest' && (steps.cache-bitcoind.outputs.cache-hit != 'true' || steps.cache-electrs.outputs.cache-hit != 'true')"
         run: |
           source ./scripts/download_bitcoind_electrs.sh
-          mkdir -p bin
+          mkdir bin
           mv "$BITCOIND_EXE" bin/bitcoind-${{ runner.os }}-${{ runner.arch }}
           mv "$ELECTRS_EXE" bin/electrs-${{ runner.os }}-${{ runner.arch }}
       - name: Set bitcoind/electrs environment variables
-        if: "matrix.platform != 'windows-latest'"
         run: |
           echo "BITCOIND_EXE=$( pwd )/bin/bitcoind-${{ runner.os }}-${{ runner.arch }}" >> "$GITHUB_ENV"
           echo "ELECTRS_EXE=$( pwd )/bin/electrs-${{ runner.os }}-${{ runner.arch }}" >> "$GITHUB_ENV"