Add gssoc to the issue templates

Author: Adez017

.github/ISSUE_TEMPLATE/Create feature_request.yml

@@ -59,3 +59,5 @@ body:
           required: true
         - label: "I want to work on this issue"
           required: false
+        - label: "I am a part of gssoc26"
+          required: true

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -50,3 +50,5 @@ body:
           required: true
         - label: "I want to work on this issue"
           required: false
+        - label: "I am a part of gssoc26"
+          required: true

.github/ISSUE_TEMPLATE/documentation_update.yml

@@ -56,3 +56,5 @@ body:
           required: true
         - label: "I want to work on this issue"
           required: false
+        - label: "I am a part of gssoc26"
+          required: true