Revert "disable flow tests in OSS CI"

This reverts commit 1f45491.

Author: simonmar

.github/workflows/ci-aarch64.yml

@@ -94,7 +94,7 @@ jobs:
         run: cabal update
 
       - name: Disable some tests
-        run: echo CABAL_CONFIG_FLAGS="-f-hack-tests -f-flow-tests -f-rust-tests -f-python-tests" >> "$GITHUB_ENV"
+        run: echo CABAL_CONFIG_FLAGS="-f-hack-tests -f-rust-tests -f-python-tests" >> "$GITHUB_ENV"
 
       - name: Install hsthrift and Glean dependencies
         run: sudo apt-get install -y pkg-config rsync libgmock-dev libpcre3-dev libtinfo-dev libxxhash-dev

.github/workflows/ci.yml

@@ -163,7 +163,7 @@ jobs:
           make setup-folly-version
 
       - name: Disable some tests
-        run: echo CABAL_CONFIG_FLAGS="$CABAL_CONFIG_FLAGS -f-hack-tests -f-flow-tests -f-rust-tests -f-python-tests" >> "$GITHUB_ENV"
+        run: echo CABAL_CONFIG_FLAGS="$CABAL_CONFIG_FLAGS -f-hack-tests -f-rust-tests -f-python-tests" >> "$GITHUB_ENV"
 
       - name: Setup index-state
         run: echo CABAL_CONFIG_FLAGS="$CABAL_CONFIG_FLAGS --index-state=${{ matrix.index-state }}" >>"$GITHUB_ENV"