Update to lts 12.26

Author: Dan Aloni

stack.yaml

@@ -1,5 +1,5 @@
 require-stack-version: ">= 2.1.3"
-resolver: lts-12.14
+resolver: lts-12.26
 extra-deps:
 - patience-0.1.1@sha256:c71f04c26708ac283c7bf7f4da515bb7d87921e7891aa3a12c56432baf874476,1216
 - url: https://github.com/da-x/gitlib/archive/eef462541c68be62e6cbc5ac4595114bd6f67233.tar.gz

stack.yaml.lock

@@ -61,7 +61,7 @@ packages:
     url: https://github.com/da-x/gitlib/archive/eef462541c68be62e6cbc5ac4595114bd6f67233.tar.gz
 snapshots:
 - completed:
-    size: 504771
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/12/14.yaml
-    sha256: 3cbd6c83316dd5e2bbc756dc7a2a4e31a31859c3f8b5c720efb6850b08e42649
-  original: lts-12.14
+    size: 509471
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/12/26.yaml
+    sha256: 95f014df58d0679b1c4a2b7bf2b652b61da8d30de5f571abb0d59015ef678646
+  original: lts-12.26