Convert large PNG/JPEG images to WebP and update references

Signed-off-by: Jothika Aravindhan <jothikaaravindhan@gmail.com>

Author: jothikaaravindhan

src/collections/members/kishore-kumar/index.mdx

@@ -1,7 +1,7 @@
 ---
 name: Kishore Kumar
 position: Contributor
-image_path: ./kishore-kumar.jpeg
+image_path: ./kishore-kumar.webp
 github: kishore007k
 twitter: kishorekumarst1
 linkedin: kishore-kumar-6bb5801a2

src/collections/members/kishore-kumar/kishore-kumar.jpeg

@@ -1,7 +1,7 @@
 ---
 name: Manish Dangi
 position: Contributor
-image_path: ./manish-dangi.jpeg
+image_path: ./manish-dangi.webp
 twitter: ManishD62096177
 github: manishdangi98
 layer5: a0f57023-9757-43f8-8597-87a709d9e4fe

src/collections/members/kishore-kumar/kishore-kumar.webp

@@ -1,7 +1,7 @@
 ---
 name: Oyin Dawodu
 position: Contributor
-image_path: ./oyin-dawodu.jpeg
+image_path: ./oyin-dawodu.webp
 github: mzoyinda
 twitter: oyindawodu
 linkedin: oyin-dawodu-989434b6