Update CI built to 7.8 and add Alex as responsible for the tests

Racket 7.8 has been released, so ci.yml has been updated to use that version
for the builds.  Also added myself as the person responsible for all tests
(apparently this needs to be done in all the "info.rkt" files)

Author: alex-hhh

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        racket-version: ["7.7", "current"]
+        racket-version: ["7.8", "current"]
         racket-variant: ["regular", "CS"]
     steps:
       - uses: actions/checkout@v2

plot-compat/info.rkt

@@ -13,3 +13,5 @@
 (define pkg-desc "Compatibility library for Plot 5.1.3 and earlier")
 
 (define pkg-authors '(ntoronto))
+
+(define test-responsibles '((all [email protected])))

plot-compat/plot/info.rkt

@@ -1 +1,2 @@
 #lang info
+(define test-responsibles '((all [email protected])))

plot-doc/info.rkt

@@ -26,3 +26,5 @@
 (define pkg-desc "Documentation for plot")
 
 (define pkg-authors '(ntoronto))
+
+(define test-responsibles '((all [email protected])))

plot-gui-lib/info.rkt

@@ -17,3 +17,5 @@
 (define pkg-authors '(ntoronto))
 
 (define version "1.1")
+
+(define test-responsibles '((all [email protected])))

plot-lib/info.rkt

@@ -19,3 +19,5 @@
 (define pkg-authors '(ntoronto))
 
 (define version "1.1")
+
+(define test-responsibles '((all [email protected])))

plot-test/plot/info.rkt

@@ -1,2 +1,3 @@
 #lang info
 (define compile-omit-paths '("tests"))
+(define test-responsibles '((all [email protected])))

plot/info.rkt

@@ -8,3 +8,5 @@
 (define pkg-desc "Functions (and docs and tests) for plotting")
 
 (define pkg-authors '(ntoronto))
+
+(define test-responsibles '((all [email protected])))