[release] Bump max age of last release.

TBR=hablich@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1553103002

Cr-Commit-Position: refs/heads/master@{#33079}

tools/release/auto_roll.py

@@ -186,7 +186,7 @@ class AutoRoll(ScriptsBase):
     parser.add_argument("--last-roll",
                         help="The git commit ID of the last rolled version. "
                              "Auto-detected if not specified.")
-    parser.add_argument("--max-age", default=3, type=int,
+    parser.add_argument("--max-age", default=7, type=int,
                         help="Maximum age in days of the latest release.")
     parser.add_argument("--revision",
                         help="Revision to roll. Auto-detected if not "

tools/release/test_scripts.py

@@ -1038,7 +1038,7 @@ deps = {
       Cmd("git fetch origin +refs/tags/*:refs/tags/*", ""),
       Cmd("git describe --tags last_roll_hsh", "3.22.4"),
       Cmd("git fetch origin +refs/tags/*:refs/tags/*", ""),
-      Cmd("git rev-list --max-age=740800 --tags",
+      Cmd("git rev-list --max-age=395200 --tags",
           "bad_tag\nroll_hsh\nhash_123"),
       Cmd("git describe --tags bad_tag", ""),
       Cmd("git describe --tags roll_hsh", "3.22.4"),
@@ -1074,7 +1074,7 @@ deps = {
       Cmd("git fetch origin +refs/tags/*:refs/tags/*", ""),
       Cmd("git describe --tags last_roll_hsh", "3.22.3.1"),
       Cmd("git fetch origin +refs/tags/*:refs/tags/*", ""),
-      Cmd("git rev-list --max-age=740800 --tags",
+      Cmd("git rev-list --max-age=395200 --tags",
           "bad_tag\nroll_hsh\nhash_123"),
       Cmd("git describe --tags bad_tag", ""),
       Cmd("git describe --tags roll_hsh", "3.22.4"),