build(deps): bump boto3 from 1.15.14 to 1.15.15 (#268)

Bumps [boto3](https://github.com/boto/boto3) from 1.15.14 to 1.15.15.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/boto3/compare/1.15.14...1.15.15)

Signed-off-by: dependabot[bot] <support@github.com>

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

Pipfile.lock

@@ -74,18 +74,18 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:2415549481e446c6809ff7199d8321f976ece7b7b5c18c829bcee3121a784385",
-                "sha256:82b5c608c3d6bb1bd66b3d2a64a31c8a470294fef61c761bf38f2f8fdc905328"
+                "sha256:1627f97e050be59cfef839481acc73eba4b29e475a067f374a493e6b7f25601e",
+                "sha256:8aafa1ec72451cf70fe6d8c7e86b1a83d2e195d4dda95e5bf21e40132a38c309"
             ],
             "index": "pypi",
-            "version": "==1.15.14"
+            "version": "==1.15.15"
         },
         "botocore": {
             "hashes": [
-                "sha256:539aaf805ad8842ee3fb7350e0a4853f3db6a95ea9ffbe92add1ad2a6636ee86",
-                "sha256:b929e352a6fd4883cae38ba662fbf6ba93a9251acf476aa1e05b0fac1e81c313"
+                "sha256:3b9179edbba61c96f5d1eaa4328c9cda686bd461e102c5878c4880479c24e268",
+                "sha256:f59437ff69d260faa876a2bb7d76debcbbb3b1a497e9ff49550a1a5501679720"
             ],
-            "version": "==1.18.14"
+            "version": "==1.18.15"
         },
         "cachetools": {
             "hashes": [
@@ -1021,10 +1021,10 @@
         },
         "sqlparse": {
             "hashes": [
-                "sha256:0523026398aea9c8b5f7a4a6d5c0829c285b4fbd960c17b5967a369342e21e01",
-                "sha256:d59e473424ae7470778fa4dd0dd7bb666ff324f0a6106c29deb5946ea5367f04"
+                "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0",
+                "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"
             ],
-            "version": "==0.4.0"
+            "version": "==0.4.1"
         },
         "structlog": {
             "hashes": [
@@ -1679,10 +1679,10 @@
         },
         "sqlparse": {
             "hashes": [
-                "sha256:0523026398aea9c8b5f7a4a6d5c0829c285b4fbd960c17b5967a369342e21e01",
-                "sha256:d59e473424ae7470778fa4dd0dd7bb666ff324f0a6106c29deb5946ea5367f04"
+                "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0",
+                "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"
             ],
-            "version": "==0.4.0"
+            "version": "==0.4.1"
         },
         "stevedore": {
             "hashes": [