Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)
• Bump debhelper from old 11 to 13. (package-uses-old-debhelper-compat-version)
• Set upstream metadata fields: Archive, Bug-Database, Bug-Submit, Contact, Name, Repository-Browse. (upstream-metadata-file-is-missing, upstream-metadata-missing-bug-tracking)
• Update standards version to 4.6.1, no changes needed. (out-of-date-standards-version)

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Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/r-cran-ecodist/b707f047-9537-4b5a-9696-6655df856b83.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/fc/05dbc663d0abc0c81f2894a71fcae61eb5e06b.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/0c/bf7b036fc5fdc6ad6c5bf32acc73a43e241a43.debug

Control files of package r-cran-ecodist: lines which differ (wdiff format)

• Depends: libblas3 | libblas.so.3, libc6 (>= 2.4), r-base-core (>= 4.2.0-1), 4.2.0-1~jan+unchanged1), r-api-4.0

Control files of package r-cran-ecodist-dbgsym: lines which differ (wdiff format)

• Build-Ids: 0cbf7b036fc5fdc6ad6c5bf32acc73a43e241a43 fc05dbc663d0abc0c81f2894a71fcae61eb5e06b

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