Add release dates for 3.15.1 through 3.15.12

<python/peps@d5d2571>

Author: jwodder

pyversion-info-data.json

@@ -300,6 +300,18 @@
         "3.14.13": "2027-08-03",
         "3.14.14": "2027-10-05",
         "3.15.0": "2026-10-09",
+        "3.15.1": "2026-12-01",
+        "3.15.2": "2027-02-02",
+        "3.15.3": "2027-04-06",
+        "3.15.4": "2027-06-01",
+        "3.15.5": "2027-08-03",
+        "3.15.6": "2027-10-05",
+        "3.15.7": "2027-12-07",
+        "3.15.8": "2028-02-01",
+        "3.15.9": "2028-04-04",
+        "3.15.10": "2028-06-06",
+        "3.15.11": "2028-08-01",
+        "3.15.12": "2028-10-03",
         "3.16.0": "2027-10-05"
     },
     "series_eol_dates": {

pyversion-info-data.v1.json

@@ -1,5 +1,5 @@
 {
-    "last_modified": "2026-10-14T14:53:23+00:00",
+    "last_modified": "2026-10-19T18:03:21+00:00",
     "cpython": {
         "release_dates": {
             "0.9.0": "1991-02-20",
@@ -302,6 +302,18 @@
             "3.14.13": "2027-08-03",
             "3.14.14": "2027-10-05",
             "3.15.0": "2026-10-09",
+            "3.15.1": "2026-12-01",
+            "3.15.2": "2027-02-02",
+            "3.15.3": "2027-04-06",
+            "3.15.4": "2027-06-01",
+            "3.15.5": "2027-08-03",
+            "3.15.6": "2027-10-05",
+            "3.15.7": "2027-12-07",
+            "3.15.8": "2028-02-01",
+            "3.15.9": "2028-04-04",
+            "3.15.10": "2028-06-06",
+            "3.15.11": "2028-08-01",
+            "3.15.12": "2028-10-03",
             "3.16.0": "2027-10-05"
         },
         "eol_dates": {