require ruby 2.7.8 when testing w/ asdf, rbenv

rrotter · rrotter · commit 9ea6c5fba9eb · 2023-09-21T11:57:17.000-04:00
diff --git a/.ruby-version b/.ruby-version
@@ -0,0 +1 @@
+2.7.8
diff --git a/.tool-versions b/.tool-versions
@@ -0,0 +1 @@
+ruby 2.7.8
