Bump php81_bc/strftime from 0.6.0 to 0.7.4 (#830)

Bumps [php81_bc/strftime](https://github.com/alphp/strftime) from 0.6.0 to 0.7.4.
- [Release notes](https://github.com/alphp/strftime/releases)
- [Commits](alphp/strftime@0.6.0...0.7.4)

---
updated-dependencies:
- dependency-name: php81_bc/strftime
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -35,7 +35,7 @@
         "katzgrau/klogger": "^1.2.2",
         "pear/http_request2": "^2.6.0",
         "pear/net_dns2": "^1.5.4",
-        "php81_bc/strftime": "^0.6.0",
+        "php81_bc/strftime": "^0.7.4",
         "smarty/smarty": "^4.3.4",
         "voku/simple-cache": "^4.1.0"
     },