feat: new gitreleaseinfo macro and associated test

tests/base/mp_gitreleaseinfo.test.sas

@@ -0,0 +1,30 @@
+/**
+  @file
+  @brief Testing mp_gitreleaseinfo.sas macro
+
+  <h4> SAS Macros </h4>
+  @li mp_gitreleaseinfo.sas
+  @li mp_assert.sas
+
+**/
+
+
+%mp_gitreleaseinfo(github,sasjs/core,outlib=mylibref,mdebug=1)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=mp_gitreleaseinfo runs without errors,
+  outds=work.test_results
+)
+
+data _null_;
+  set mylibref.author;
+  putlog (_all_)(=);
+  call symputx('author',login);
+run;
+
+%mp_assert(
+  iftrue=(&author=sasjsbot),
+  desc=release info extracted successfully,
+  outds=work.test_results
+)