build: add config .gitattributes (#199)

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Source-Link: googleapis/synthtool@dc9caca

Author: yoshi-automation

core/projectify/.gitattributes

@@ -0,0 +1,3 @@
+*.ts text eol=lf
+*.js test eol=lf
+protos/* linguist-generated

core/projectify/synth.metadata

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-projectify.git",
-        "sha": "96befea8172ab3329d4047bc02fcb1d620eb0fa3"
+        "sha": "3406f2aa431ed04541585b63c330c04270c602aa"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "b10590a4a1568548dd13cfcea9aa11d40898144b"
+        "sha": "dc9caca650c77b7039e2bbc3339ffb34ae78e5b7"
       }
     }
   ]