Please add upper bound `algebraic-graphs <0.7` on hackage

[hamishmack]

Without it cabal tries to build hiedbwith the new algebraic-graphs-0.7.

Please add the upper bound to all versions of hiedb otherwise cabal is will have to choose between using and old hiedb and using an old algebraic-graphs and it is likely to choose badly.

Here is the error that we get with algebraic-graphs-0.7.

src/HieDb/Query.hs:270:54: error:
    • Couldn't match expected type ‘AdjacencyMap a1’
                  with actual type ‘[a]’
    • In the first argument of ‘dfs’, namely ‘vs’
      In the first argument of ‘Set.fromList’, namely ‘(dfs vs m)’
      In the expression: Set.fromList (dfs vs m)
    • Relevant bindings include
        s :: Set a1 (bound at src/HieDb/Query.hs:270:32)
        vs :: [a] (bound at src/HieDb/Query.hs:270:23)
        m :: AdjacencyMap a (bound at src/HieDb/Query.hs:270:21)
        splitByReachability :: AdjacencyMap a -> [a] -> (Set a, Set a)
          (bound at src/HieDb/Query.hs:270:1)
    |
270 | splitByReachability m vs = let s = Set.fromList (dfs vs m) in (s, vertexSet m Set.\\ s)
    |                                                      ^^

src/HieDb/Query.hs:270:57: error:
    • Couldn't match expected type ‘[a1]’
                  with actual type ‘AdjacencyMap a’
    • In the second argument of ‘dfs’, namely ‘m’
      In the first argument of ‘Set.fromList’, namely ‘(dfs vs m)’
      In the expression: Set.fromList (dfs vs m)
    • Relevant bindings include
        s :: Set a1 (bound at src/HieDb/Query.hs:270:32)
        vs :: [a] (bound at src/HieDb/Query.hs:270:23)
        m :: AdjacencyMap a (bound at src/HieDb/Query.hs:270:21)
        splitByReachability :: AdjacencyMap a -> [a] -> (Set a, Set a)
          (bound at src/HieDb/Query.hs:270:1)
    |
270 | splitByReachability m vs = let s = Set.fromList (dfs vs m) in (s, vertexSet m Set.\\ s)
    |                                                         ^

[sjakobi]

As a Hackage trustee I have performed the necessary revisions. See e.g. https://hackage.haskell.org/package/hiedb-0.4.1.0/revisions/.